{"id":141,"date":"2010-08-01T08:42:43","date_gmt":"2010-08-01T00:42:43","guid":{"rendered":"http:\/\/www.shuizilong.com\/house\/?p=141"},"modified":"2012-03-03T08:43:04","modified_gmt":"2012-03-03T00:43:04","slug":"%e6%9c%80%e4%bc%98%e5%ad%90%e7%9f%a9%e9%98%b5%e7%b3%bb%e5%88%97%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/www.shuizilong.com\/house\/archives\/%e6%9c%80%e4%bc%98%e5%ad%90%e7%9f%a9%e9%98%b5%e7%b3%bb%e5%88%97%e9%97%ae%e9%a2%98\/","title":{"rendered":"\u6700\u4f18\u5b50\u77e9\u9635\u7cfb\u5217\u95ee\u9898&#8230;"},"content":{"rendered":"<p> \u4ee5\u6700\u5927\u5b50\u5e8f\u5217\u548c\u95ee\u9898\u505a\u4e3a\u57fa\u7840\uff0c\u901a\u8fc7\u4e0d\u65ad\u7684\u589e\u52a0\u7ef4\u5ea6\u6765\u63a8\u5e7f\u4e00\u7ef4\u7684\u6a21\u578b\u3002\u4e5f\u662f\u6a21\u578b\u601d\u60f3\u7684\u4e00\u4e2a\u5f88\u597d\u7684\u4f8b\u5b50\uff0c\u8fd9\u91cc\u505a\u590d\u4e60\u7528\u54d2\u3002\u3002<\/p>\n<p><!--more--><\/p>\n<pre lang=\"cpp\" file=\"1D.cpp\">\r\n#include <iostream>\r\nusing namespace std;\r\nconst int N = 100;\r\nint A[N];\r\nint n, ans;\r\n\r\n\r\nvoid init(){\r\n    cin >> n;\r\n    for (int i=0;i<n;i++)\r\n        cin >> A[i];\r\n}\r\n\r\nvoid solve(){\r\n    int sum = 0;\r\n    for (int i=0;i<n;i++){\r\n        sum += A[i];\r\n        if (sum<0) {sum=0;continue;}\r\n        ans = max(ans, sum);\r\n    }\r\n}\r\n\r\nint main(){\r\n    init(); solve();\r\n    cout << ans << endl;\r\n}\r\n<\/pre>\n<pre lang=\"cpp\" file=\"2D.cpp\">\r\n#include <iostream>\r\n#include <cstdio>\r\nusing namespace std;\r\nconst int M = 101, N = 101;\r\nint A[M][N], S[M][N];\r\nint m, n, ans;\r\n\r\nvoid init(){\r\n    cin >> m >> n;\r\n    for (int i=1;i<=m;i++)\r\n        for (int j=1;j<=n;j++)\r\n            scanf(\"%d\", &#038;A[i][j]);\r\n\r\n    for (int j=1;j<=n;j++){\r\n        S[1][j] = A[1][j];\r\n        for (int i=2;i<=m;i++)\r\n            S[i][j] = S[i-1][j] + A[i][j];\r\n    }\r\n    ans = 0;\r\n}\r\n\r\n\r\nvoid solve(){\r\n    for (int l=0;l<m;l++)\r\n        for (int r=l+1;r<=m;r++){\r\n            int sum = 0;\r\n            for (int i=1;i<=n;i++){\r\n                sum += S[r][i] - S[l][i];\r\n                if (sum<0) {sum=0;continue;}\r\n                ans = max(ans, sum);\r\n            }\r\n        }\r\n}\r\n\r\n\r\nint main(){\r\n    init(); solve();\r\n    cout << ans << endl;\r\n}\r\n<\/pre>\n<pre lang=\"cpp\" file=\"3D.cpp\">\r\n#include <iostream>\r\n#include <cstdio>\r\nusing namespace std;\r\nconst int H = 33, M = 51, N = 51;\r\nint A[H][M][N], B[M][N], C[N];\r\nint h, m, n, ans;\r\n\r\nvoid init(){\r\n    cin >> h >> m >> n;\r\n    for (int i=1;i<=h;i++)\r\n        for (int j=1;j<=m;j++)\r\n            for (int k=1;k<=n;k++)\r\n                scanf(\"%d\", &#038;A[i][j][k]);\r\n}\r\n\r\n\r\nvoid solve(){\r\n\r\n    int l, r;\r\n    int ll, rr;\r\n    int i, j, k;\r\n    int sum;\r\n\r\n\r\n    ans = 0;\r\n    for (i=1;i<=m;i++)\r\n        for (j=1;j<=n;j++)\r\n            for (k=2;k<=h;k++)\r\n                A[k][i][j] += A[k-1][i][j];\r\n\r\n\r\n    for (l=0;l<h;l++)\r\n    for (r=l+1;r<=h;r++){\r\n        for (i=1;i<=m;i++)\r\n        for (j=1;j<=n;j++)\r\n            B[i][j] = A[r][i][j] - A[l][i][j];\r\n\r\n        for (i=1;i<=n;i++)\r\n            for (j=2;j<=m;j++)\r\n                B[j][i] += B[j-1][i];\r\n\r\n\r\n        for (ll=0;ll<m;ll++)\r\n        for (rr=ll+1;rr<=m;rr++){\r\n            for (i=1;i<=n;i++)\r\n                C[i] = B[rr][i] - B[ll][i];\r\n\r\n            sum = 0;\r\n            for (i=1;i<=n;i++){\r\n                sum += C[i];\r\n                if (sum<0) {sum=0;continue;}\r\n                ans = max(ans, sum);\r\n            }\r\n        }\r\n    }\r\n}\r\n\r\n\r\nint main(){\r\n    init(); solve();\r\n    cout << ans << endl;\r\n}\r\n<\/pre>\n<p>Internal link :<br \/>\nhttps:\/\/www.shuizilong.com\/house\/archives\/740<\/p>\n<p>External link :<br \/>\nhttp:\/\/www.rqnoj.cn\/Problem.asp?Act=Search&Title=%B3%D4%CE%F7%B9%CF&Type=98<br \/>\nhttp:\/\/acm.hit.edu.cn\/judge\/show.php?Proid=101357<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4ee5\u6700\u5927\u5b50\u5e8f\u5217\u548c\u95ee\u9898\u505a\u4e3a\u57fa\u7840\uff0c\u901a\u8fc7\u4e0d\u65ad\u7684\u589e\u52a0\u7ef4\u5ea6\u6765\u63a8\u5e7f\u4e00\u7ef4\u7684\u6a21\u578b\u3002\u4e5f\u662f\u6a21\u578b\u601d\u60f3\u7684\u4e00\u4e2a\u5f88\u597d\u7684\u4f8b\u5b50\uff0c\u8fd9\u91cc\u505a\u590d\u4e60\u7528\u54d2\u3002\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[1],"tags":[],"class_list":["post-141","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p2tdP7-2h","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/141","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/comments?post=141"}],"version-history":[{"count":0,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/posts\/141\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/media?parent=141"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/categories?post=141"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shuizilong.com\/house\/wp-json\/wp\/v2\/tags?post=141"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}