{"id":10817,"date":"2026-07-16T08:30:00","date_gmt":"2026-07-15T23:30:00","guid":{"rendered":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/?page_id=10817"},"modified":"2026-07-09T10:02:55","modified_gmt":"2026-07-09T01:02:55","slug":"p1403a","status":"publish","type":"page","link":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/lecture\/prog\/practice-advance\/p14\/p1403a\/","title":{"rendered":"\u7df4\u7fd2 [14] \u5f8c\u534a\u306e\u5fa9\u7fd2\uff083\/5\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-light-green-cyan-background-color has-background\"><strong>\u7df4\u7fd2 3<\/strong>\uff08\u63d0\u51fa\u30d7\u30ed\u30b0\u30e9\u30e0\u540d\uff1ap1403a.c\uff09<\/h4>\n\n\n\n<p class=\"problem wp-block-paragraph\">\u307e\u305a\uff0c<a href=\"\/lecture\/prog\/material\/p1403a.c\" target=\"_blank\" rel=\"noreferrer noopener\">\u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\uff08p1403a.c\uff09<\/a>\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u306a\u3055\u3044\uff0e<br>p1403a.c \u3067\u306f 1 \u3064\u306e\u6587\u5b57\u5217\u3092\u8aad\u307f\u8fbc\u307f\uff0c\u305d\u308c\u3092\u9006\u9806\u306b\u66f8\u304d\u63db\u3048\u3066\u51fa\u529b\u3057\u3088\u3046\u3068\u3057\u3066\u3044\u308b\uff0e<br><br>\u5177\u4f53\u7684\u306b\u306f\uff0c<kbd>main<\/kbd> \u3067\u6587\u5b57\u5217\u3092\u8aad\u307f\u8fbc\u3093\u3060\u5f8c\uff0c\u305d\u308c\u3092\u95a2\u6570 <kbd>reverse<\/kbd> \u306b\u5f15\u6570\u3068\u3057\u3066<br>\u6e21\u3057\u3066<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-red-color\">\u5185\u5bb9\u3092\u9006\u9806\u306b\u66f8\u304d\u63db\u3048<\/mark><\/strong>\u3088\u3046\u3068\u3057\u3066\u3044\u308b\uff0e<br>\u4ee5\u4e0b\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u5f93\u3063\u3066\uff0c<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-strong-blue-color\">\u95a2\u6570 <kbd>reverse<\/kbd> \u3092\u5b8c\u6210\u3055\u305b\u306a\u3055\u3044\uff0e<\/mark><\/strong><br>\u305f\u3060\u3057\uff0c\u95a2\u6570 <kbd>reverse <\/kbd>\u306e\u4e2d\u3067\u306f\uff0c<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-red-color\">\u3042\u3089\u304b\u3058\u3081\u7528\u610f\u3055\u308c\u3066\u3044\u308b <\/mark><\/strong><br><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-red-color\">3 \u3064\u306e\u5909\u6570\uff08char \u5909\u6570 <kbd>c<\/kbd>\uff0c\u30dd\u30a4\u30f3\u30bf\u5909\u6570 <kbd>p<\/kbd> \u3068 <kbd>q<\/kbd> \uff09\u4ee5\u5916\u306e\u5909\u6570\u3092\u4f7f\u3063\u3066\u306f\u3044\u3051\u307e\u305b\u3093<\/mark><\/strong>\uff0e<br>\u307e\u305f\uff0c<strong>\u6587\u5b57\u5217\u51e6\u7406\u306b\u95a2\u3059\u308b\u30e9\u30a4\u30d6\u30e9\u30ea\u95a2\u6570\uff08<kbd>strlen<\/kbd> \u7b49\uff09\u3082\u4f7f\u3063\u3066\u306f\u3044\u3051\u307e\u305b\u3093<\/strong>\uff0e<br><br>\u3010\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3011<br>(1) \u3072\u3068\u307e\u305a <kbd>p<\/kbd>, <kbd>q<\/kbd> \u3068\u3082\u6587\u5b57\u5217\u306e\u5148\u982d\u3092\u6307\u3059\u3088\u3046\u306b\u3057\u307e\u3059\uff1a<br> \u3000\u3000<kbd>p = str;<\/kbd><br> \u3000\u3000<kbd>q = str;<\/kbd><br><br>(2) \u6b21\u306b\uff0c\u30dd\u30a4\u30f3\u30bf <kbd>q<\/kbd> \u3092\u6587\u5b57\u5217\u306e\u672b\u5c3e\uff08\u30ca\u30eb\u6587\u5b57\uff09\u306e\u4f4d\u7f6e\u307e\u3067\u79fb\u52d5\u3055\u305b\u307e\u3059\uff0e<br>\u3000\u203b <kbd>while<\/kbd> \u304b <kbd>for<\/kbd> \u3092\u4f7f\u3046\u3068\u3088\u3044\uff0e<br><br>(3) \u7d9a\u3044\u3066\uff0c\u30dd\u30a4\u30f3\u30bf <kbd>q<\/kbd> \u3092\u4e00\u3064\u624b\u524d\u306e\u6587\u5b57\u306e\u4f4d\u7f6e\u306b\u79fb\u52d5\u3055\u305b\u307e\u3059\uff1a<br>\u3000\u3000<kbd>q--;<\/kbd><br>\u3000\u203b\u3053\u306e\u6642\u70b9\u3067 <kbd>(*p)<\/kbd> \u304c\u5148\u982d\u6587\u5b57\uff0c<kbd>(*q) <\/kbd>\u304c\u672b\u5c3e\u6587\u5b57\u306b\u306a\u308a\u307e\u3059\uff0e<br><br>(4) \u7121\u9650\u30eb\u30fc\u30d7\uff08<kbd>while(1)<\/kbd> \u7b49\u3092\u5229\u7528\uff09\u3068\u3057\u3066\u4ee5\u4e0b\u3092\u7e70\u308a\u8fd4\u3059\uff1a<br>\u3000\u3000(4-1) \u3082\u3057 <kbd>q &lt;= p<\/kbd>  \u306a\u3089\u3070<kbd> break;<\/kbd> \u3067\u7e70\u308a\u8fd4\u3057\u3092\u7d42\u4e86\u3059\u308b\uff0e<br> \u3000\u3000\u3000\u3000\u3055\u3082\u306a\u304f\u3070 <kbd>p<\/kbd> \u3068 <kbd>q<\/kbd> \u306e\u6307\u3059\u6587\u5b57\u3092\u5165\u308c\u66ff\u3048\u308b\uff0e<br><br>\u3000\u3000\u3000\u3000\u3000\u3000\u203b\u4e0a\u306e\u300c\u6761\u4ef6\u304c\u6210\u7acb\u3059\u308b\u300d\u3068\u3044\u3046\u3053\u3068\u306f\uff0c<kbd>p<\/kbd> \u3068 <kbd>q<\/kbd> \u306f\u540c\u3058\u4f4d\u7f6e\u3092\u6307\u3057\u3066\u3044\u308b\u304b\uff0c<br>\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u307e\u305f\u306f\uff08<kbd>p<\/kbd> \u3068 <kbd>q<\/kbd> \u304c\u3059\u308c\u9055\u3063\u305f\u5f8c\u3067\uff09<kbd>q<\/kbd> \u306e\u65b9\u304c <kbd>p<\/kbd> \u3088\u308a\u3082\u524d\u306e\u4f4d\u7f6e\u3092\u5dee\u3057\u3066\u3044\u308b\u306e\u3067\uff0c<br>\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u6587\u5b57\u306e\u5165\u308c\u66ff\u3048\u306f\u7d42\u4e86\u3068\u306a\u308b\uff0e<br><br>\u3000\u3000(4-2) <kbd>p++;<\/kbd> \u3068 <kbd>q--;<\/kbd> \u3092\u884c\u3046\uff0e<br>\u3000\u3000<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u3010\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5b9f\u884c\u4f8b\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: 450px; margin-top: -15pt; margin-bottom: 10px;\">\u6587\u5b57\u5217\u3092 1 \u3064\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\uff0864\u6587\u5b57\u672a\u6e80\uff09<span style=\"color:#00aa00\">\u23ce<\/span>\n&gt; <span class=\"has-inline-color\" style=\"color: #ff0000;\">univ<\/span>\n\u5165\u529b = [univ]<span style=\"color:#00aa00\">\u23ce<\/span>\n\u9006\u9806 = [vinu]<span style=\"color:#00aa00\">\u23ce<\/span>\n\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u3010\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5b9f\u884c\u4f8b\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: 450px; margin-top: -15pt; margin-bottom: 10px;\">\u6587\u5b57\u5217\u3092 1 \u3064\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\uff0864\u6587\u5b57\u672a\u6e80\uff09<span style=\"color:#00aa00\">\u23ce<\/span>\n&gt; <span class=\"has-inline-color\" style=\"color: #ff0000;\">Hello<\/span>\n\u5165\u529b = [Hello]<span style=\"color:#00aa00\">\u23ce<\/span>\n\u9006\u9806 = [olleH]<span style=\"color:#00aa00\">\u23ce<\/span>\n\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u3010\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5b9f\u884c\u4f8b\u3011\uff08\u305d\u306e\uff13\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: 450px; margin-top: -15pt; margin-bottom: 10px;\">\u6587\u5b57\u5217\u3092 1 \u3064\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\uff0864\u6587\u5b57\u672a\u6e80\uff09<span style=\"color:#00aa00\">\u23ce<\/span>\n&gt; <span class=\"has-inline-color\" style=\"color: #ff0000;\">a<\/span>\n\u5165\u529b = [a]<span style=\"color:#00aa00\">\u23ce<\/span>\n\u9006\u9806 = [a]<span style=\"color:#00aa00\">\u23ce<\/span>\n\n<\/pre>\n\n\n\n<p class=\"miss wp-block-paragraph\"><strong>\u3010\u904e\u53bb\u306b\u3042\u3063\u305f\u30df\u30b9\uff08\u6e1b\u70b9\u3068\u306a\u308a\uff0c\u3084\u308a\u76f4\u3057\u3092\u547d\u3058\u3089\u308c\u308b\uff09\u3011<\/strong> <br> \u25a0 <strong><mark style=\"background-color:rgba(0, 0, 0, 0);color: #ff0000;\" class=\"has-inline-color\">\uff13\u7a2e\u985e\u306e\u5b9f\u884c\u4f8b\u3092\u78ba\u8a8d\u305b\u305a\u306b<\/mark>\u63d0\u51fa<\/strong>\u3057\u3066\u3057\u307e\u3063\u3066\u3044\u308b\uff0e <br> \u25a0 <strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-strong-blue-color\">\u51fa\u529b\u3055\u308c\u308b\u6587\u5b57\u5217\u304c\u5b9f\u884c\u4f8b\u3068\u306f\u9055\u3063\u3066\u3044\u308b<\/mark><\/strong>\uff0e <br> \u25a0 <strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-strong-blue-color\">\u30a4\u30f3\u30c7\u30f3\u30c8\u306b\u4e0d\u5099<\/mark><\/strong>\u304c\u3042\u308b\uff08<a 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\" rel=\"noreferrer noopener\">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-black-color has-css-opacity has-black-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\">\u2190 [ <a href=\"https:\/\/se.cite.ehime-u.ac.jp\/jp\/lecture\/prog\/practice-advance\/p14\/p1402a\/\">\u7df4\u7fd22 (p1402a.c)<\/a> ]<\/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\/practice-advance\/p14\/p1404a\/\">\u7df4\u7fd24 (p1404a.c)<\/a> ]<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u7df4\u7fd2 3\uff08\u63d0\u51fa\u30d7\u30ed\u30b0\u30e9\u30e0\u540d\uff1ap1403a.c\uff09 \u307e\u305a\uff0c\u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\uff08p1403a.c\uff09\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u306a\u3055\u3044\uff0ep1403a.c \u3067\u306f 1 \u3064\u306e\u6587\u5b57\u5217\u3092\u8aad\u307f\u8fbc\u307f\uff0c\u305d\u308c\u3092\u9006\u9806\u306b\u66f8\u304d\u63db\u3048\u3066\u51fa\u529b\u3057\u3088\u3046\u3068\u3057\u3066\u3044\u308b\uff0e \u5177\u4f53\u7684\u306b\u306f\uff0c <a class=\"more-link\" href=\"https:\/\/se.cite.ehime-u.ac.jp\/jp\/lecture\/prog\/practice-advance\/p14\/p1403a\/\">&#8230; more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":10793,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-10817","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/pages\/10817","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=10817"}],"version-history":[{"count":10,"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/pages\/10817\/revisions"}],"predecessor-version":[{"id":12865,"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/pages\/10817\/revisions\/12865"}],"up":[{"embeddable":true,"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/pages\/10793"}],"wp:attachment":[{"href":"https:\/\/se.cite.ehime-u.ac.jp\/jp\/wp-json\/wp\/v2\/media?parent=10817"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}