The dealer will do their best to make you lose.<\/p>\n
You are given\u00a0Q\u00a0queries, so answer each of them. The\u00a0j-th query is as follows:<\/p>\n
- \n
- For a game of difficulty\u00a0Bj\u200b, report the minimum integer\u00a0x\u00a0you must declare at the start to guarantee a win. If it is impossible to win, report\u00a0\u22121\u00a0instead.<\/li>\n<\/ul>\n
Constraints<\/h4>\n
- \n
- 1\u2264N\u22643\u00d7105<\/li>\n
- 1\u2264Q\u22643\u00d7105<\/li>\n
- 1\u2264Ai\u200b\u2264106\u00a0(1\u2264i\u2264N)<\/li>\n
- 1\u2264Bj\u200b\u2264min(106,A1\u200b+\u22ef+AN\u200b)\u00a0(1\u2264j\u2264Q)<\/li>\n
- All input values are integers.<\/li>\n<\/ul>\n
\nInput<\/h4>\n
The input is given from Standard Input in the following format:<\/p>\n
N Q
\nA1\u200b \u22ef AN\u200b
\nB1\u200b
\n\u22ee
\nBQ\u200b<\/p>\nOutput<\/h4>\n
Print\u00a0Q\u00a0lines.<\/p>\n
The\u00a0j-th line (1\u2264j\u2264Q) should contain the answer to the\u00a0j-th query.<\/p>\n
\nSample Input 1<\/h4>\n
Copy<\/p>\n
4 5
\n4 1 8 4
\n1
\n8
\n5
\n2
\n10<\/p>\nSample Output 1<\/h4>\n
Copy<\/p>\n
1
\n17
\n14
\n5
\n-1<\/p>\nFor the\u00a01-st query, if you declare\u00a0x=1, then no matter which\u00a01\u00a0bag the dealer chooses, you can satisfy the winning condition by choosing appropriate\u00a01\u00a0bag among them. Since you cannot choose an integer\u00a0x\u00a0less than\u00a01, the answer is\u00a01.<\/p>\n
For the\u00a02-nd query, if you declare\u00a0x=17, then no matter which\u00a017\u00a0bags the dealer chooses, you can satisfy the winning condition by choosing appropriate\u00a08\u00a0bags among them. Conversely, if\u00a0x<17, the dealer can choose bags to prevent your victory. Thus, the answer is\u00a017.<\/p>\n
For the\u00a03-rd query, if you declare\u00a0x=14, then no matter which\u00a014\u00a0bags the dealer chooses, you can satisfy the winning condition by choosing appropriate\u00a05\u00a0bags among them. Conversely, if\u00a0x<14, the dealer can choose bags to prevent your victory. Thus, the answer is\u00a014.<\/p>\n
For the\u00a04-th query, if you declare\u00a0x=5, then no matter which\u00a05\u00a0bags the dealer chooses, you can satisfy the winning condition by choosing appropriate\u00a02\u00a0bags among them. Conversely, if\u00a0x<5, the dealer can choose bags to prevent your victory. Thus, the answer is\u00a05.<\/p>\n
For the\u00a05-th query, no matter what\u00a0x\u00a0you declare, the dealer can choose bags to prevent your victory. Thus, print\u00a0\u22121.<\/p>\n
\nSample Input 2<\/h4>\n
Copy<\/p>\n
5 3
\n13 13 13 13 2
\n5
\n12
\n13<\/p>\nSample Output 2<\/h4>\n
Copy<\/p>\n
19
\n47
\n51<\/p>\n\u7ffb\u8bd1：<\/p>\n
C – Flush\u00a0<\/span><\/span><\/p>\n
\n\u65f6\u95f4\u9650\u5236：2 \u79d2 \/ \u5185\u5b58\u9650\u5236：1024 MiB<\/span><\/span><\/p>\n
\u00a0\u00a0\u5f97\u5206：\u00a0350\u00a0\u5206<\/span><\/span><\/p>\n
\u00a0\u00a0\u95ee\u9898\u63cf\u8ff0<\/span><\/span><\/span><\/h4>\n
\u5728\u6251\u514b\u684c\u4e0a，\u6709\u00a0N\u00a0\u79cd\u4e0d\u540c\u53e3\u5473\u7684\u8336\u5305\u3002\u8fd9\u4e9b\u53e3\u5473\u7684\u7f16\u53f7\u4ece\u00a01\u00a0\u5230\u00a0N\u00a0，\u5176\u4e2d\u6709\u00a0Ai\u200b\u00a0\u4e2a\u00a0i\u00a0\u53e3\u5473\u7684\u8336\u5305（\u00a01\u2264i\u2264N\u00a0）\u3002<\/span><\/span><\/p>\n
\u4f60\u5c06\u4f7f\u7528\u8fd9\u4e9b\u8336\u5305\u73a9\u4e00\u4e2a\u6e38\u620f\u3002\u8fd9\u4e2a\u6e38\u620f\u6709\u4e00\u4e2a\u53c2\u6570\u53eb\u505a\u96be\u5ea6，\u8303\u56f4\u5728\u00a01\u00a0\u5230\u00a0A1\u200b+\u22ef+AN\u200b\u00a0\u4e4b\u95f4（\u5305\u62ec\u00a01\u00a0\u548c\u00a0A1\u200b+\u22ef+AN\u200b\u00a0）\u3002\u96be\u5ea6\u4e3a\u00a0b\u00a0\u7684\u6e38\u620f\u5982\u4e0b\u8fdb\u884c：<\/span><\/span><\/p>\n
- \u4f60\u58f0\u660e\u4e00\u4e2a\u6574\u6570\u00a0x\u00a0\u3002\u8fd9\u91cc，\u5b83\u5fc5\u987b\u6ee1\u8db3\u00a0b\u2264x\u2264A1\u200b+\u22ef+AN\u200b\u00a0\u3002<\/span><\/span><\/li>\n
- \u5e84\u5bb6\u4ece\u684c\u4e0a\u7684\u8336\u5305\u4e2d\u6311\u9009\u6070\u597d\u00a0x\u00a0\u4e2a\u8336\u5305\u7ed9\u4f60\u3002<\/span><\/span><\/li>\n
- \u4f60\u68c0\u67e5\u6536\u5230\u7684\u00a0x\u00a0\u8336\u53f6\u5305\u7684\u53e3\u5473，\u5e76\u4ece\u4e2d\u9009\u62e9\u00a0b\u00a0\u8336\u53f6\u5305\u3002<\/span><\/span><\/li>\n
- \u5982\u679c\u4f60\u9009\u62e9\u7684\u5168\u90e8\u00a0b\u00a0\u8336\u53f6\u5305\u53e3\u5473\u76f8\u540c，\u4f60\u5c31\u8d62\u4e86\u3002\u5426\u5219，\u4f60\u5c31\u8f93\u4e86\u3002<\/span><\/span><\/li>\n
\u5e84\u5bb6\u4f1a\u5c3d\u529b\u8ba9\u4f60\u8f93\u3002<\/span><\/span><\/p>\n
\u7ed9\u4f60\u00a0Q\u00a0\u4e2a\u67e5\u8be2，\u56de\u7b54\u6bcf\u4e00\u4e2a\u67e5\u8be2\u3002\u7b2c\u00a0j\u00a0\u4e2a\u67e5\u8be2\u5982\u4e0b：<\/span><\/span><\/p>\n
- \n
- \u5bf9\u4e8e\u96be\u5ea6\u4e3a\u00a0Bj\u200b\u00a0\u7684\u6e38\u620f，\u62a5\u544a\u4f60\u5fc5\u987b\u4ece\u5f00\u59cb\u5c31\u58f0\u660e\u7684\u6700\u5c0f\u6574\u6570\u00a0x\u00a0\u4ee5\u786e\u4fdd\u83b7\u80dc\u3002\u5982\u679c\u65e0\u6cd5\u83b7\u80dc，\u5219\u62a5\u544a\u00a0\u22121\u00a0\u3002<\/span><\/span><\/li>\n<\/ul>\n
\u00a0\u00a0\u7ea6\u675f\u6761\u4ef6<\/span><\/span><\/span><\/h4>\n
- \n
- 1\u2264N\u22643\u00d7105<\/span><\/span><\/li>\n
- 1\u2264Q\u22643\u00d7105<\/span><\/span><\/li>\n
- 1\u2264Ai\u200b\u2264106\u00a0(1\u2264i\u2264N)<\/span><\/span><\/li>\n
- 1\u2264Bj\u200b\u2264min(106,A1\u200b+\u22ef+AN\u200b)\u00a0(1\u2264j\u2264Q)<\/span><\/span><\/li>\n
- \u6240\u6709\u8f93\u5165\u503c\u90fd\u662f\u6574\u6570\u3002<\/span><\/span><\/li>\n<\/ul>\n
\n\u00a0\u00a0\u8f93\u5165<\/span><\/span><\/span><\/h4>\n
\u8f93\u5165\u6309\u7167\u4ee5\u4e0b\u683c\u5f0f\u4ece\u6807\u51c6\u8f93\u5165\u7ed9\u51fa：<\/span><\/span><\/p>\n
N Q
\nA1\u200b \u22ef AN\u200b
\nB1\u200b
\n\u22ee
\nBQ\u200b
\n<\/span><\/span><\/span><\/span><\/p>\n\u00a0\u00a0\u8f93\u51fa<\/span><\/span><\/span><\/h4>\n
\u00a0\u00a0\u6253\u5370\u00a0Q\u00a0\u884c\u3002<\/span><\/span><\/p>\n
\u7b2c\u00a0j\u00a0\u884c（\u00a01\u2264j\u2264Q\u00a0）\u5e94\u5305\u542b\u7b2c\u00a0j\u00a0\u4e2a\u67e5\u8be2\u7684\u7b54\u6848\u3002<\/span><\/span><\/p>\n
\n\u00a0\u00a0\u793a\u4f8b\u8f93\u5165 1Copy<\/span><\/span><\/span><\/h4>\n
\u00a0\u00a0\u590d\u5236<\/span><\/span><\/span><\/span><\/p>\n
4 5
\n4 1 8 4
\n1
\n8
\n5
\n2
\n10
\n<\/span><\/span><\/span><\/span><\/p>\n\u00a0\u00a0\u793a\u4f8b\u8f93\u51fa 1Copy<\/span><\/span><\/span><\/h4>\n
\u00a0\u00a0\u590d\u5236<\/span><\/span><\/span><\/span><\/p>\n
1
\n17
\n14
\n5
\n-1
\n<\/span><\/span><\/span><\/span><\/p>\n\u5bf9\u4e8e\u7b2c\u00a01\u00a0\u4e2a\u67e5\u8be2，\u5982\u679c\u4f60\u58f0\u660e\u00a0x=1\u00a0，\u90a3\u4e48\u65e0\u8bba\u7ecf\u9500\u5546\u9009\u62e9\u54ea\u4e2a\u00a01\u00a0\u888b，\u4f60\u90fd\u53ef\u4ee5\u901a\u8fc7\u9009\u62e9\u5176\u4e2d\u5408\u9002\u7684\u00a01\u00a0\u888b\u6765\u6ee1\u8db3\u83b7\u80dc\u6761\u4ef6\u3002\u7531\u4e8e\u4f60\u4e0d\u80fd\u9009\u62e9\u5c0f\u4e8e\u00a01\u00a0\u7684\u6574\u6570\u00a0x\u00a0，\u6240\u4ee5\u7b54\u6848\u662f\u00a01\u00a0\u3002<\/span><\/span><\/p>\n
\u5bf9\u4e8e\u7b2c\u00a02\u00a0\u4e2a\u67e5\u8be2，\u5982\u679c\u4f60\u58f0\u660e\u00a0x=17\u00a0，\u90a3\u4e48\u65e0\u8bba\u7ecf\u9500\u5546\u9009\u62e9\u54ea\u4e9b\u00a017\u00a0\u888b，\u4f60\u90fd\u53ef\u4ee5\u901a\u8fc7\u9009\u62e9\u5176\u4e2d\u5408\u9002\u7684\u00a08\u00a0\u888b\u6765\u6ee1\u8db3\u83b7\u80dc\u6761\u4ef6\u3002\u76f8\u53cd，\u5982\u679c\u00a0x<17\u00a0，\u7ecf\u9500\u5546\u53ef\u4ee5\u9009\u62e9\u888b\u5b50\u6765\u963b\u6b62\u4f60\u7684\u80dc\u5229\u3002\u56e0\u6b64，\u7b54\u6848\u662f\u00a017\u00a0\u3002<\/span><\/span><\/p>\n
\u5bf9\u4e8e\u7b2c\u00a03\u00a0\u4e2a\u67e5\u8be2，\u5982\u679c\u4f60\u58f0\u660e\u00a0x=14\u00a0，\u90a3\u4e48\u65e0\u8bba\u7ecf\u9500\u5546\u9009\u62e9\u54ea\u4e9b\u00a014\u00a0\u888b\u5b50，\u4f60\u90fd\u53ef\u4ee5\u901a\u8fc7\u9009\u62e9\u5176\u4e2d\u7684\u9002\u5f53\u00a05\u00a0\u888b\u5b50\u6765\u6ee1\u8db3\u83b7\u80dc\u6761\u4ef6\u3002\u76f8\u53cd，\u5982\u679c\u00a0x<14\u00a0，\u7ecf\u9500\u5546\u53ef\u4ee5\u9009\u62e9\u888b\u5b50\u6765\u963b\u6b62\u4f60\u7684\u80dc\u5229\u3002\u56e0\u6b64，\u7b54\u6848\u662f\u00a014\u00a0\u3002<\/span><\/span><\/p>\n
\u5bf9\u4e8e\u7b2c\u00a04\u00a0\u4e2a\u67e5\u8be2，\u5982\u679c\u4f60\u58f0\u660e\u00a0x=5\u00a0，\u90a3\u4e48\u65e0\u8bba\u7ecf\u9500\u5546\u9009\u62e9\u54ea\u4e9b\u00a05\u00a0\u888b\u5b50，\u4f60\u90fd\u53ef\u4ee5\u901a\u8fc7\u9009\u62e9\u5176\u4e2d\u7684\u9002\u5f53\u00a02\u00a0\u888b\u5b50\u6765\u6ee1\u8db3\u83b7\u80dc\u6761\u4ef6\u3002\u76f8\u53cd，\u5982\u679c\u00a0x<5\u00a0，\u7ecf\u9500\u5546\u53ef\u4ee5\u9009\u62e9\u888b\u5b50\u6765\u963b\u6b62\u4f60\u7684\u80dc\u5229\u3002\u56e0\u6b64，\u7b54\u6848\u662f\u00a05\u00a0\u3002<\/span><\/span><\/p>\n
\u5bf9\u4e8e\u7b2c\u00a05\u00a0\u4e2a\u67e5\u8be2，\u65e0\u8bba\u4f60\u58f0\u660e\u4ec0\u4e48\u00a0x\u00a0，\u7ecf\u9500\u5546\u90fd\u53ef\u4ee5\u9009\u62e9\u888b\u5b50\u6765\u963b\u6b62\u4f60\u7684\u80dc\u5229\u3002\u56e0\u6b64，\u6253\u5370\u00a0\u22121\u00a0\u3002<\/span><\/span><\/p>\n
\n\u00a0\u00a0\u793a\u4f8b\u8f93\u5165 2Copy<\/span><\/span><\/span><\/h4>\n
\u00a0\u00a0\u590d\u5236<\/span><\/span><\/span><\/span><\/p>\n
5 3
\n13 13 13 13 2
\n5
\n12
\n13
\n<\/span><\/span><\/span><\/span><\/p>\n\u00a0\u00a0\u793a\u4f8b\u8f93\u51fa 2Copy<\/span><\/span><\/span><\/h4>\n
\u00a0\u00a0\u590d\u5236<\/span><\/span><\/span><\/span><\/p>\n
19
\n47
\n51<\/span><\/span><\/span><\/span><\/p>\n\u5206\u6790：\u4f7f\u5e84\u5bb6\u80dc\u5229\u7684x\u7684\u6700\u5927\u503c，\u52a0\u4e0a1，\u5c31\u662f\u201c\u6211\u201d\u80dc\u5229\u6240\u9700\u7684\u6700\u5c0f\u503c，\u5148\u5c06\u4e0d\u540c\u53e3\u5473\u7684\u8336\u5305\u6309\u4e2a\u6570\u4ece\u5c0f\u5230\u5927\u6392\u5e8f，\u627e\u5230\u4e2a\u6570\u5927\u4e8e\u7b49\u4e8eb-1\u7684\u7d22\u5f15，\u7d22\u5f15\u4e4b\u524d\u76f8\u52a0，\u7d22\u5f15\u4e4b\u540e\u4ee5（b-1）\u4e3a\u9ad8\u76f8\u4e58，\u6700\u540e\u518d\u52a0\u4e0a1，\u5373\u4e3a\u6700\u5c0f\u503c（\u53c2\u8003\u8bb2\u89e3\u89c6\u9891\u3010AtCoder \u521d\u5b66\u8005\u7ade\u8d5b 418\u6bd4\u8d5b\u8bb2\u89e3（ABC418）\u3011https:\/\/www.bilibili.com\/video\/BV1HubKzkE42?vd_source=3454b81e777238fd36a1725a4c3b1790）<\/span><\/span><\/span><\/span><\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/08\/20250816003510-689fd23e8bbda.jpg\")
<\/p>\n#include<iostream>
\n#include<algorithm>
\nusing namespace std;
\n#define int long long
\nconst int N = 3e5 + 5;
\nint q, n, a[N], sm[N];
\nsigned main()
\n{
\ncin >> n >> q;
\nfor (int i = 1;i <= n;++i)
\n{
\ncin >> a[i];
\n}
\nsort(a + 1, a + n + 1);
\nfor (int i = 1;i <= n;++i)
\n{
\nsm[i] = sm[i – 1] + a[i];\/\/\u524d\u7f00\u548c
\n}
\nwhile (q–)
\n{
\nint b, ans=0;
\ncin >> b;
\n\/\/\u627e\u5230\u5927\u4e8e\u7b49\u4e8eb-1\u7684\u5143\u7d20\u5730\u5740，\u518d\u51cf\u53bb\u9996\u5730\u5740，\u5f97\u5230\u5750\u6807\u7d22\u5f15
\nint p = lower_bound(a + 1, a + 1 + n, b – 1)-a;
\nans += sm[p – 1] + (n – p + 1) * (b – 1) + 1;
\nif (ans > sm[n])\/\/\u6ee1\u8db3\u6761\u4ef6\u7684x\u6bd4\u8336\u5305\u603b\u6570\u8fd8\u5927，\u4e0d\u5408\u89c4
\nans = -1;
\ncout << ans << endl;
\n}
\nreturn 0;
\n}<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb955\u6b21\uff0c\u70b9\u8d5e24\u6b21\uff0c\u6536\u85cf9\u6b21\u3002C\u9898\uff1aC – Flush\u3002_atcoder418<\/p>\n","protected":false},"author":2,"featured_media":58344,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[6144,174,190,100],"topic":[],"class_list":["post-58345","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-atcoder","tag-c","tag-190","tag-100"],"yoast_head":"\n
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