{"id":10389,"date":"2026-06-25T08:30:00","date_gmt":"2026-06-24T23:30:00","guid":{"rendered":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/?page_id=10389"},"modified":"2026-06-21T13:51:17","modified_gmt":"2026-06-21T04:51:17","slug":"ex1104a","status":"publish","type":"page","link":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/lecture\/prog\/exercise-advance\/ex11\/ex1104a\/","title":{"rendered":"\u8ab2\u984c [11] \u30dd\u30a4\u30f3\u30bf\u2461\uff084\/9\uff09"},"content":{"rendered":"<div class=\"breadcrumbs align wp-block-bcn-breadcrumb-trail has-text-color has-background\" vocab=\"https:\/\/schema.org\/\" typeof=\"BreadcrumbList\">\n\t<span><\/span>\n\t<span property=\"itemListElement\" typeof=\"ListItem\"><a property=\"item\" typeof=\"WebPage\" title=\"Go to \u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u5de5\u5b66\u7814\u7a76\u5ba4.\" href=\"https:\/\/se.cite.ehime-u.ac.jp\/jp\" class=\"home\" aria-current=\"page\"><span property=\"name\">\u30db\u30fc\u30e0<\/span><\/a><meta property=\"position\" content=\"1\"><\/span><\/div>\n\n\n\n<h4 class=\"wp-block-heading has-background\" style=\"background-color:#d3f28c\"><strong>\u554f 4<\/strong>\uff08\u63d0\u51fa\u30d7\u30ed\u30b0\u30e9\u30e0\u540d\uff1aex1104a.c\uff09<\/h4>\n\n\n\n<p class=\"problem wp-block-paragraph\"><a href=\"http:\/\/se.cite.ehime-u.ac.jp\/lecture\/prog\/material\/ex1104a.c\" target=\"_blank\" rel=\"noreferrer noopener\">\u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\uff08ex1104a.c\uff09<\/a>\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\uff0c<br>\u8b1b\u7fa9\u8cc7\u6599\u3067\u7d39\u4ecb\u3057\u305f\u95a2\u6570 <strong><span class=\"tadv-color\" style=\"color:#0000ff\"><kbd>strcat<\/kbd> \u3068 <kbd>strlen<\/kbd> \u3092\u4f7f\u3063\u3066<\/span><\/strong><br><strong><span class=\"tadv-color\" style=\"color:#ff0000\">\u6b21\u306e\u624b\u9806\u3067\u51e6\u7406\u3092\u884c\u3046\u30d7\u30ed\u30b0\u30e9\u30e0\u3068\u3057\u3066\u4ed5\u4e0a\u3052\u306a\u3055\u3044<\/span><\/strong>\uff0e<br>\u305f\u3060\u3057\uff0c<strong>\u624b\u9806\uff081\uff09\u301c\uff083\uff09\u306f\u65e2\u306b\u5b8c\u6210<\/strong>\u3057\u3066\u3044\u308b\uff0e<br><br><strong>\u3010\u624b\u9806\u3011<\/strong><br>\uff081\uff09char \u914d\u5217 <kbd>str<\/kbd> \u306e\u5185\u5bb9\u3092\u7a7a\u6587\u5b57\u5217\u3067\u521d\u671f\u5316\u3059\u308b\uff08<strong>\u5b9f\u88c5\u6e08<\/strong>\uff09\uff0e<br>\uff082\uff09\u6587\u5b57\u5217\u3092 <kbd>word<\/kbd> \u3068\u3057\u3066\u8aad\u307f\u8fbc\u307f\uff0c\u305d\u306e\u5185\u5bb9\u3092 <kbd>str<\/kbd> \u306e\u672b\u5c3e\u306b\u8ffd\u52a0\u3059\u308b\uff08<strong>\u5b9f\u88c5\u6e08<\/strong>\uff09\uff0e<br>\uff083\uff09\u3053\u306e\u6642\u70b9\u3067\u306e <kbd>str<\/kbd> \u306e\u5185\u5bb9\u3068\u6587\u5b57\u6570\u3092\u51fa\u529b\u3059\u308b\uff08<strong>\u5b9f\u88c5\u6e08<\/strong>\uff09\uff0e<br>\uff084\uff09<kbd>str<\/kbd> \u306e<strong><span class=\"tadv-color\" style=\"color:#ff0000\">\u6587\u5b57\u6570\u304c 20 \u672a\u6e80\u3067\u3042\u308b\u9650\u308a<\/span><\/strong>\uff0c<br>\u3000\u3000\u4ee5\u4e0b\u306e\uff084a\uff09,\uff084b\uff09,\uff084c\uff09\u3092\u7e70\u308a\u8fd4\u3059\uff1a<br>\u3000\u3000\uff084a\uff09str \u306e\u672b\u5c3e\u306b <strong><span class=\"tadv-color\" style=\"color:#0000ff\">1 \u6587\u5b57\u5206\u306e\u7a7a\u767d\uff08<kbd>\"<span class=\"tadv-background-color\" style=\"background-color:#d4d4d4\"> <\/span>\"<\/kbd>\uff09\u3092\u8ffd\u52a0<\/span><\/strong>\u3059\u308b\uff0e<br>\u3000\u3000\uff084b\uff09\u624b\u9806\uff081\uff09\u3068\u540c\u69d8\u306b<strong><span class=\"tadv-color\" style=\"color:#ff0000\">\u65b0\u3057\u3044\u6587\u5b57\u5217<\/span><\/strong>\u3092 <kbd>word<\/kbd> \u3068\u3057\u3066\u8aad\u307f\u8fbc\u307f\uff0c<br>\u3000\u3000\u3000\u3000\u3000\u305d\u306e\u5185\u5bb9\u3092 <kbd>str<\/kbd> \u306e<strong><span class=\"tadv-color\" style=\"color:#ff0000\">\u672b\u5c3e\u306b\u8ffd\u52a0<\/span><\/strong>\u3059\u308b\uff0e<br>\u3000\u3000\uff084c\uff09\u624b\u9806\uff082\uff09\u3068\u540c\u69d8\u306b <kbd>str<\/kbd> \u306e<strong><span class=\"tadv-color\" style=\"color:#ff0000\">\u5185\u5bb9\u3068\u6587\u5b57\u6570\u3092\u51fa\u529b<\/span><\/strong>\u3059\u308b\uff0e<br>\u3000\u3000\u3000\u3000\u3000\u3053\u3053\u3067\u306f\u4e0a\u3067\u8ffd\u52a0\u3057\u305f<strong><span class=\"tadv-color\" style=\"color:#0000ff\">\u7a7a\u767d\u6587\u5b57\u306e\u5206\u3082\u6587\u5b57\u6570\u3068\u3057\u3066\u30ab\u30a6\u30f3\u30c8\u3055\u308c\u308b\u304c\u305d\u308c\u3067\u3088\u3044<\/span><\/strong>\uff0e<br><br><strong>\u3010\u8981\u6ce8\u610f\u3011<\/strong><br>\u8b1b\u7fa9\u8cc7\u6599\u306b\u3082\u66f8\u3044\u3066\u3044\u307e\u3059\u304c\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u95a2\u6570 <kbd>strlen<\/kbd> \u306f\u6587\u5b57\u5217\u306e\u9577\u3055\u3092\u8abf\u3079\u3066\u304f\u308c\u308b\u4fbf\u5229<br>\u306a\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u3059\u304c\uff0c<strong>\u623b\u308a\u5024\u306e\u578b\u304c int \u578b\u3068\u306f\u7570\u306a\u308b<\/strong>\u305f\u3081\uff0c\u3053\u308c\u3092 <strong><mark style=\"background-color:#ffd4ff\" class=\"has-inline-color\">int \u578b\u306b\u30ad\u30e3\u30b9\u30c8<\/mark><\/strong>\u3057\u3066<br>\u4f7f\u308f\u306a\u3044\u3068<strong>\u6587\u5b57\u6570\u306e\u6bd4\u8f03\u3084\u6f14\u7b97\u3067\u3046\u307e\u304f\u52d5\u304b\u306a\u3044\u3053\u3068<\/strong>\u304c\u3042\u308a\u307e\u3059\uff0e<br>\u305d\u308c\u3086\u3048\uff0c\u672c\u6f14\u7fd2\u3067\u306f <mark style=\"background-color:#fffed2\" class=\"has-inline-color\">int \u578b\u306b\u5909\u63db\u305b\u305a\u306b\u4f7f\u3063\u3066\u3044\u308b\u5834\u5408\u306f<\/mark><strong><mark style=\"background-color:#fffed2\" class=\"has-inline-color has-red-color\">\u8aa4\u308a<\/mark><\/strong>\u3068\u898b\u306a\u3057\u307e\u3059\uff0e<\/p>\n\n\n\n<p class=\"hint wp-block-paragraph\">\u3010\u30d2\u30f3\u30c8\u3011<br>\u300c<kbd>str<\/kbd> \u306e\u6587\u5b57\u6570\u304c 20 \u672a\u6e80\u3067\u3042\u308b\u9650\u308a\u300d\u306f\u6b21\u306e while \u6587\u3067\u66f8\u304f\u3068\u3088\u3044\u3067\u3059\uff1a<br>\u3000<kbd><mark style=\"background-color:#fbcfff\" class=\"has-inline-color\">while ( (int)strlen(str) &lt; 20 )<\/mark><\/kbd><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u3010\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5b9f\u884c\u7d50\u679c\u3011\uff08\u305d\u306e\uff11\uff09<\/strong>\u203b<span style=\"color:#ff0000\" class=\"has-inline-color\">\u8d64\u5b57<\/span>\u306f\u5b9f\u884c\u6642\u306b\u30ad\u30fc\u30dc\u30fc\u30c9\u304b\u3089\u5165\u529b\u3059\u308b\u5185\u5bb9<\/li>\n<\/ul>\n\n\n\n<pre class=\"example\" style=\"width: 500px; margin-top: -15pt; margin-bottom: 10px\">\u6587\u5b57\u5217\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<span style=\"color:#ff0000\" class=\"has-inline-color\">This<\/span>\n\u3053\u308c\u307e\u3067\u306e\u6587\u5b57\u5217\uff1a[This] (4\u6587\u5b57)<span style=\"color:#00aa00\">\u23ce<\/span>\n\u6587\u5b57\u5217\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<span style=\"color:#ff0000\" class=\"has-inline-color\">is<\/span>\n\u8ffd\u52a0\u5f8c\u306e\u6587\u5b57\u5217\uff1a[This is] (7\u6587\u5b57)<span style=\"color:#00aa00\">\u23ce<\/span>\n\u6587\u5b57\u5217\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<span style=\"color:#ff0000\" class=\"has-inline-color\">a<\/span>\n\u8ffd\u52a0\u5f8c\u306e\u6587\u5b57\u5217\uff1a[This is a] (9\u6587\u5b57)<span style=\"color:#00aa00\">\u23ce<\/span>\n\u6587\u5b57\u5217\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<span style=\"color:#ff0000\" class=\"has-inline-color\">sample<\/span>\n\u8ffd\u52a0\u5f8c\u306e\u6587\u5b57\u5217\uff1a[This is a sample] (16\u6587\u5b57)<span style=\"color:#00aa00\">\u23ce<\/span>\n\u6587\u5b57\u5217\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<span style=\"color:#ff0000\" class=\"has-inline-color\">program<\/span>\n\u8ffd\u52a0\u5f8c\u306e\u6587\u5b57\u5217\uff1a[This is a sample program] (24\u6587\u5b57)<span style=\"color:#00aa00\">\u23ce<\/span>\n\n<\/pre>\n<p style=\"font-size:10pt; margin-left:10pt\">\u203b\u7d50\u679c\u7684\u306b 20 \u6587\u5b57\u4ee5\u4e0a\u306b\u306a\u3063\u3066\u3044\u308b\u304c\uff0c\u3053\u308c\u306f\u300csample\u300d\u3092\u8ffd\u52a0\u3057\u3066\u8868\u793a\u3057\u305f\u6642\u70b9\u3067\u306f 16 \u6587\u5b57\u3067\u3042\u3063\u305f\u305f\u3081\u306b\u624b\u9806 4 \u3067\u306e\u7e70\u308a\u8fd4\u3057\u304c\u7d9a\u884c\u3055\u308c\uff0c\u305d\u306e\u6b21\u306e\u300cprogram\u300d\u3092\u8ffd\u52a0\u3057\u3066\u8868\u793a\u3057\u305f\u5f8c\u306b\u3088\u3046\u3084\u304f\u300c20 \u6587\u5b57\u672a\u6e80\u300d\u3068\u3044\u3046\u6761\u4ef6\u304c\u5d29\u308c\u3066\u7d42\u4e86\u3057\u305f\u305f\u3081\u3067\u3042\u308b\uff0e<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u3010\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5b9f\u884c\u7d50\u679c\u3011\uff08\u305d\u306e\uff12\uff09<\/strong>\u203b<span style=\"color:#ff0000\" class=\"has-inline-color\">\u8d64\u5b57<\/span>\u306f\u5b9f\u884c\u6642\u306b\u30ad\u30fc\u30dc\u30fc\u30c9\u304b\u3089\u5165\u529b\u3059\u308b\u5185\u5bb9<\/li>\n<\/ul>\n\n\n\n<pre class=\"example\" style=\"width: 500px; margin-top: -15pt; margin-bottom: 10px\">\u6587\u5b57\u5217\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<span style=\"color:#ff0000\" class=\"has-inline-color\">This-is-a-sample-program<\/span>\n\u3053\u308c\u307e\u3067\u306e\u6587\u5b57\u5217\uff1a[This-is-a-sample-program] (24\u6587\u5b57)<span style=\"color:#00aa00\">\u23ce<\/span>\n\n<\/pre>\n<p style=\"font-size:10pt; margin-left:10pt\">\u203b\u3044\u304d\u306a\u308a 20 \u6587\u5b57\u4ee5\u4e0a\u3092\u5165\u529b\u3057\u3066\u3044\u308b\u305f\u3081\uff0c\u624b\u9806 4 \u3067\u306e\u7e70\u308a\u8fd4\u3057\u306f\u884c\u308f\u308c\u306a\u3044\uff0e<\/p>\n\n\n\n<p class=\"miss wp-block-paragraph\"><strong>\u3010\u904e\u53bb\u306b\u3042\u3063\u305f\u30df\u30b9\uff08\u5b9f\u969b\u306b\u6e1b\u70b9\u3068\u306a\u308a\uff0c\u3084\u308a\u76f4\u3057\u3092\u547d\u3058\u3089\u308c\u305f\u4f8b\uff09\u3011<\/strong><br> \u25a0 <strong>\u5b9f\u884c\u306e<span class=\"tadv-color\" style=\"color:#ff0000\">\u753b\u9762\u51fa\u529b\u304c\u4e0a\u306e\u4f8b\u3068\u9055\u3046<\/span><\/strong>\uff08<strong><span class=\"tadv-color\" style=\"color:#0000ff\">\u304d\u3061\u3093\u3068\u78ba\u8a8d\u3057\u3066\u3044\u306a\u3044<\/span><\/strong>\uff09\uff0e<br> \u3000\uff08\u4f8b\uff11\uff09\u51fa\u529b\u3055\u308c\u308b<strong><span class=\"tadv-color\" style=\"color:#0000ff\">\u6587\u5b57\u6570<\/span><\/strong>\u304c\u9055\u3063\u3066\u3044\u308b\uff0e<br> \u3000\uff08\u4f8b\uff12\uff09\u51fa\u529b\u3055\u308c\u308b\u5358\u8a9e\u3068\u5358\u8a9e\u306e\u9593\u306b<strong><span class=\"tadv-color\" style=\"color:#ff0000\">\u9014\u4e2d\u306b\u7a7a\u767d\u304c\u5165\u3063\u3066\u3044\u306a\u3044<\/span><\/strong>\uff0e<br> \u3000\uff08\u4f8b\uff13\uff09<strong><span class=\"tadv-color\" style=\"color:#0000ff\">\u5148\u982d\u3084\u672b\u5c3e\u306b\u4e0d\u8981\u306a\u7a7a\u767d<\/span><\/strong>\u304c\u51fa\u529b\u3055\u308c\u3066\u3057\u307e\u3063\u3066\u3044\u308b\uff0e<br> \u25a0 <kbd>strcat<\/kbd> \u3084 <kbd>strlen<\/kbd> \u3092\u4f7f\u3063\u3066\u826f\u3044\u306e\u306b\uff0c\u3053\u308c\u3089\u306b\u76f8\u5f53\u3059\u308b\u51e6\u7406\u3092<strong>\u81ea\u524d\u3067\u66f8\u3053\u3046\u3068\u3057\u3066\u7121\u99c4\u306b\u8907\u96d1\u5316<\/strong>\u3057\u3066\u3044\u308b\uff0e<br> \u25a0 <strong><span class=\"tadv-color\" style=\"color:#0000ff\">\u30a4\u30f3\u30c7\u30f3\u30c8\u306b\u4e0d\u5099<\/span><\/strong>\u304c\u3042\u308b\uff08<a rel=\"noreferrer noopener\" href=\"https:\/\/se.cite.ehime-u.ac.jp\/jp\/lecture\/prog\/vscode-%e4%b8%8a%e3%81%a7%e3%82%a4%e3%83%b3%e3%83%87%e3%83%b3%e3%83%88%e3%82%92%e8%87%aa%e5%8b%95%e3%81%a7%e6%8f%83%e3%81%88%e3%82%8b%e6%96%b9%e6%b3%95\/\" target=\"_blank\">VSCode \u4e0a\u3067\u30a4\u30f3\u30c7\u30f3\u30c8\u3092\u81ea\u52d5\u3067\u63c3\u3048\u308b\u4f5c\u696d<\/a>\u3092\u3084\u3063\u3066\u3044\u306a\u3044\uff09\uff0e<\/p>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-very-dark-gray-color has-css-opacity has-very-dark-gray-background-color has-background is-style-wide\"\/>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<p class=\"wp-block-paragraph\"><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p class=\"has-text-align-right wp-block-paragraph\"><strong>\u30df\u30b9\u304c\u7121\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3057\u305f\u3089<\/strong>\u6b21\u306e\u554f\u984c\u3078 \u2192 [<a href=\"https:\/\/se.cite.ehime-u.ac.jp\/jp\/lecture\/prog\/exercise-advance\/ex11\/ex1105a\/\"> \u554f 5 (ex1105a.c)<\/a> ]<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u554f 4\uff08\u63d0\u51fa\u30d7\u30ed\u30b0\u30e9\u30e0\u540d\uff1aex1104a.c\uff09 \u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\uff08ex1104a.c\uff09\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\uff0c\u8b1b\u7fa9\u8cc7\u6599\u3067\u7d39\u4ecb\u3057\u305f\u95a2\u6570 strcat \u3068 strlen \u3092\u4f7f\u3063\u3066\u6b21\u306e\u624b\u9806\u3067\u51e6\u7406\u3092\u884c\u3046\u30d7\u30ed\u30b0\u30e9\u30e0\u3068\u3057\u3066\u4ed5\u4e0a\u3052\u306a\u3055\u3044\uff0e\u305f\u3060 <a class=\"more-link\" href=\"https:\/\/se.cite.ehime-u.ac.jp\/jp\/lecture\/prog\/exercise-advance\/ex11\/ex1104a\/\">&#8230; more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":10372,"menu_order":3,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-10389","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/pages\/10389","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/comments?post=10389"}],"version-history":[{"count":4,"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/pages\/10389\/revisions"}],"predecessor-version":[{"id":12721,"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/pages\/10389\/revisions\/12721"}],"up":[{"embeddable":true,"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/pages\/10372"}],"wp:attachment":[{"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/media?parent=10389"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}