{"id":122,"date":"2026-04-09T17:41:59","date_gmt":"2026-04-09T09:41:59","guid":{"rendered":"https:\/\/blog.kiloming.top\/?p=122"},"modified":"2026-04-09T17:42:51","modified_gmt":"2026-04-09T09:42:51","slug":"%e7%ae%97%e6%b3%95%e4%b9%a0%e9%a2%98day3","status":"publish","type":"post","link":"https:\/\/blog.kiloming.top\/?p=122","title":{"rendered":"\u7b97\u6cd5\u4e60\u9898DAY3"},"content":{"rendered":"\n

\u524d\u8a00<\/h2>\n\n\n\n

\u672c\u6587\u7ae0\u4e3b\u8981\u5199\u7684\u662f\u6709\u5173\u5dee\u5206\u7684\u76f8\u5173\u4e60\u9898<\/p>\n\n\n\n

\u5dee\u5206\u7684\u5b9a\u4e49<\/h2>\n\n\n\n

\u5dee\u5206\u5c31\u662f\u524d\u4e00\u4e2a\u6570\u51cf\u53bb\u540e\u4e00\u4e2a\u6570\u7684\u503c\uff0c a[i+1] – a[i];<\/p>\n\n\n\n

\u7ed9\u5b9a\u4e00\u4e2a\u6570\u7ec4a[5]<\/p>\n\n\n\n

a[5] = {1, 2, 3, 4, 5};<\/code><\/pre>\n\n\n\n
\u5176\u5dee\u5206\u6570\u7ec4\u4e3a\uff1a<\/p>\n\n\n\n
d[] = {1, 1, 1, 1, 1};<\/code><\/pre>\n\n\n\n
\u5982\u679c\u5bf9\u5176\u8fdb\u884c\u4e00\u6b21\u524d\u7f00\u548c\u5f97\u5230\u4ee5\u4e0b\u6570\u7ec4<\/p>\n\n\n\n
s[] = {1, 2, 3, 4, 5};<\/code><\/pre>\n\n\n\n
\u6211\u4eec\u53d1\u73b0s[] = a[] \uff0c\u6240\u4ee5\u5dee\u5206\u548c\u524d\u7f00\u548c\u4e92\u4e3a\u9006\u8fd0\u7b97<\/p>\n\n\n\n
\u5dee\u5206\u7684\u6027\u8d28<\/h2>\n\n\n\n
\u7ed9\u5b9a\u6570\u7ec4<\/p>\n\n\n\n
a[] = {0, 1, 2, 3, 4, 5, 6, 4};<\/code><\/pre>\n\n\n\n
\u5982\u679c\u60f3\u7ed9\u533a\u95f4[2, 5]\u6bcf\u4e00\u4e2a\u6570\u90fd\u52a0\u4e0a3\uff0c\u4e00\u822c\u7684\u65b9\u6cd5\u5c31\u662f\u4ece\u5f00\u59cb\u904d\u5386\u5230\u4e0b\u68072\uff0c \u7136\u540e\u6bcf\u4e2a\u5143\u7d20\u52a03\uff0c\u904d\u5386\u5230\u4e0b\u68075\u505c\u6b62\uff0c\u4f46\u662f\uff0c\u5982\u679c\u5f53a[]\u4e2d\u7684\u5143\u7d20\u5f88\u5927\u7684\u60c5\u51b5\u4e0b\uff0c\u8fd9\u79cd\u65b9\u6cd5\u5c31\u4f1a\u6d6a\u8d39\u5927\u91cf\u65f6\u95f4\u3002\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u8fd9\u6837\u505a\uff0c\u5728\u5dee\u5206\u6570\u7ec4\u7684\u5bf9\u5e94\u4e0b\u68072\u4e0a\u52a03\uff0c\u4e0b\u68075+1\u51cf3\uff0c\u7136\u540e\u518d\u6c42\u524d\u7f00\u548c\uff0c\u7ed3\u679c\u5f97\u5230\u4ee5\u4e0b\u6570\u7ec4\uff1a<\/p>\n\n\n\n
\/\/\u5dee\u5206\na[] = {0, 1, 1, 1, 1, 1, 1, -2}<\/code><\/pre>\n\n\n\n
\/\/\u57282\uff0c5\u4e0b\u6807\u4f4d\u7f6e\u52a0\u4e0a3\na[] = {0, 1, 4, 1, 1, 1, -2, -2};<\/code><\/pre>\n\n\n\n
\/\/\u524d\u7f00\u548c\na[] = {0, 1, 5, 6, 7, 8, 6, 4};<\/code><\/pre>\n\n\n\n
\u53d1\u73b0\u539f\u6570\u7ec4\u7684[2, 5]\u90fd\u589e\u52a0\u4e863\uff0c \u4f7f\u7528\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5f88\u4fbf\u5229\u7684\u5bf9\u6307\u5b9a\u533a\u95f4\u5185\u7684\u6240\u6709\u5143\u7d20\u540c\u65f6\u52a0\u4e0a\u4e00\u4e2a\u6216\u51cf\u4e00\u4e2a\u6570\u3002<\/p>\n\n\n\n
\u5dee\u5206\u8fd8\u53ef\u4ee5\u7528\u6765\u5224\u65ad\u6570\u7ec4\u7684\u589e\u51cf\u6027\uff1a<\/p>\n\n\n\n
a[4] = {1, 2, 3, 4, 5};\nb[4] = {5, 4, 3, 2, 1};\nc[4] = {2, 3, 3, 4, 4};<\/code><\/pre>\n\n\n\n
\u5bf9\u4e8e\u4ee5\u4e0a\u6570\u7ec4\u8fdb\u884c\u5dee\u5206<\/p>\n\n\n\n
a[4] = {1, 1, 1, 1, 1};\nb[4] = {-1, -1, -1, -1, -1};\nc[4] = {2, 1, 0, 1, 0}<\/code><\/pre>\n\n\n\n
\u53d1\u73b0\u5f53\u539f\u6570\u7ec4\u662f\u9012\u589e\u7684\u65f6\u5019\uff0c\u5176\u5dee\u5206\u6570\u5217\u5168\u90e8\u5927\u4e8e\u96f6\uff0c\u53cd\u4e4b\u5168\u90e8\u5c0f\u4e8e\u96f6\u3002\u5f53\u6709\u76f8\u90bb\u5143\u7d20\u76f8\u7b49\u65f6\uff0c\u5dee\u5206\u6570\u5217\u5c31\u4f1a\u51fa\u73b00\u3002<\/p>\n\n\n\n
\u9898\u76ee\uff1a<\/h2>\n\n\n\n
2128\u91cd\u65b0\u6392\u5e8f<\/h3>\n\n\n\n
\u9898\u76ee\u94fe\u63a5\uff1ahttps:\/\/www.lanqiao.cn\/problems\/2128\/learning\/?page=1&first_category_id=1&second_category_id=3&problem_id=2128<\/a><\/p>\n\n\n\n
\u5206\u6790\uff1a<\/p>\n\n\n\n
\u8fd9\u9053\u9898\u7ed9\u5b9a\u4e86\u591a\u4e2a\u533a\u95f4[L, R],\u5148\u6c42\u5728\u539f\u6570\u7ec4\u5728\u8fd9\u591a\u4e2a\u533a\u95f4\u7684\u603b\u548c\uff0c\u7136\u540e\u5bf9\u539f\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\uff0c\u4f7f\u5f97\u91cd\u65b0\u6392\u5217\u540e\u7684\u6570\u7ec4\u5728\u591a\u4e2a[L, R]\u533a\u95f4\u5185\u7684\u548c\u4ec5\u53ef\u80fd\u7684\u5927\uff0c\u6700\u540e\u6c42\u51fa\u5176\u5dee\uff1b<\/p>\n\n\n\n
\u6bcf\u5f53\u7ed9\u51fa\u4e00\u4e2a\u533a\u95f4\uff0c\u8be5\u533a\u95f4\u7684\u6570\u5c31\u88ab\u8986\u76d6\u4e00\u6b21\uff0c\u6240\u4ee5\u7ed9\u51fa\u591a\u4e2a\u533a\u95f4\uff0c\u5176\u5bf9\u5e94\u4f4d\u7f6e\u5c31\u4f1a\u88ab\u8986\u76d6\u591a\u6b21\uff0c\u5982\u679c\u60f3\u6c42\u51fa\u6765\u7684\u548c\u6700\u5927\uff0c\u90a3\u4e48\u5c31\u9700\u8981\u5c3d\u53ef\u80fd\u8986\u76d6\u8f83\u5927\u7684\u6570\u3002\u6362\u53e5\u8bdd\u8bf4\u8986\u76d6\u6b21\u6570\u5c31\u662f\u8981\u8ba1\u7b97\u7684\u6b21\u6570<\/p>\n\n\n\n
\u4f8b\u5982\uff0c\u7ed9\u5b9a\u4ee5\u4e0b\u6570\u7ec4\u548c\u533a\u95f4<\/p>\n\n\n\n
1 2 3 4 5\n1 3\n2 5<\/code><\/pre>\n\n\n\n
1-3\u533a\u95f4\u88ab\u8986\u76d6\u4e00\u6b21\uff0c2-5\u533a\u95f4\u88ab\u8986\u76d6\u4e00\u6b21\uff0c\u5176\u5bf9\u5e94\u4f4d\u7f6e\u88ab\u8986\u76d6\u7684\u6b21\u6570\uff1a<\/p>\n\n\n\n
1 2 2 1 1 <\/code><\/pre>\n\n\n\n
\u6240\u4ee5\u6211\u4eec\u9700\u8981\u5c06\u539f\u6570\u5217\u4e2d\u8f83\u5927\u7684\u6570\u653e\u5165\u8986\u76d6\u6b21\u6570\u8f83\u591a\u7684\u4f4d\u7f6e\u3002<\/p>\n\n\n\n
\u4ee3\u7801\u5b9e\u73b0\uff1a<\/p>\n\n\n\n
\/\/\u8fd9\u9898\u521a\u5f00\u59cb\u5c31\u53ea\u662f\u60f3\u5230\u533a\u95f4\u4e4b\u95f4\u4f1a\u8986\u76d6\uff0c\u5c06\u65cf\u5927\u7684\u6570\u653e\u5728\u8986\u76d6\u6700\u591a\u7684\u5730\u65b9\n\/*\n1.\u4f7f\u7528\u5dee\u5206\u627e\u5230\u6bcf\u4e2a\u4f4d\u7f6e\u8986\u76d6\u7684\u6743\u91cd \n2.\u5c06\u5dee\u5206\u6570\u7ec4\u548c\u539f\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\n3.\u5c06\u4e24\u4e2a\u6570\u7ec4\u5927\u7684\u76f8\u4e58\u6c42\u548c\u5c31\u884c\n*\/\n\/\/\u6ce8\u610f\u4f7f\u7528long long \n#include <iostream>\n#include <algorithm>\n#include <vector>\nusing namespace std;\nint main(){\n    long long n;\n    cin >> n;\n    vector<long long> a(n+1);       \/\/\u5b58\u50a8\u539f\u6570\u7ec4 \u6ce8\u610f\u8981\u591a\u5f00\u4e00\u4f4d\uff0c\u8fd9\u6837\u5bf9\u5e94\u8fb9\u754c\u5c31\u662f\u5bf9\u5e94\u4e0b\u6807\n    vector<long long> s(n+1);       \/\/\u524d\u7f00\u548c\uff0c\u7528\u4e8e\u6c42\u5bf9\u5e94\u533a\u95f4\u548c\uff0c\u4e5f\u8981\u591a\u5f00\u4e00\u4f4d\uff0c\u8fd9\u6837\u5bf9\u5e94\u8fb9\u754c\u5c31\u662f\u5bf9\u5e94\u4e0b\u6807\n    a[0] = 0;\n    s[0] = 0;\n    for(long long i = 1; i <= n; i++){\n        cin >> a[i];\n        s[i] = s[i-1] + a[i];\n    }\n    \/\/ for(int i = 1; i <= n; i++){\n    \/\/     cout << s[i] << endl;\n    \/\/ }\n\n    \/\/\u6c42\u51fa\u539f\u6570\u7ec4\u7684\u533a\u95f4\u548c\n    long long m;\n    cin >> m;\n    long long sum = 0;\n    vector<long long> diff(n+1);        \/\/\u8986\u76d6\u6b21\u6570\u6570\u7ec4\uff0c\u4e5f\u8981\u591a\u5f00\u4e00\u4f4d\uff0c\u8fd9\u6837\u5bf9\u5e94\u8fb9\u754c\u5c31\u662f\u5bf9\u5e94\u4e0b\u6807\n    for(long long i = 0; i < m; i++){\n        long long l, r;\n        cin >> l >> r;\n        diff[l] += 1;\n        diff[r+1] -= 1;\n        sum += (s[r] - s[l-1]);\n    }\n    \/\/cout << sum << endl;\n    for(long long i = 1; i <= n; i++){\n        diff[i] += diff[i-1];\n        \/\/cout << diff[i] << \" \";\n    }\n    \/\/\u5bf9\u5dee\u5206\u6570\u7ec4\u548c\u539f\u6570\u7ec4\u8fdb\u884c\n    sort(a.begin(), a.end() );\n    sort(diff.begin(), diff.end());\n\n    \/\/ for(int i = 0; i <= n; i++){\n    \/\/     cout << diff[i] << \" \"; \n    \/\/ }\n    long long new_sum = 0;\n    for(long long i = 0; i <= n; i++){\n        new_sum += (a[i] * diff[i]); \n    }\n    cout << new_sum - sum << endl;\n    \n}<\/code><\/pre>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
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