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QOJ
| ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
|---|---|---|---|---|---|---|---|---|---|
| #394217 | #4913. 子集匹配 | hswfwkj | Compile Error | / | / | C++14 | 269b | 2024-04-20 10:22:28 | 2024-04-20 10:22:28 |
Judging History
answer
#include<bits/stdc++.h>
#include "hall.h"
using namespace std;
int solve(int n, int K, int s)
{
int mn = 0, pos = 0;
for(int i = 1; i <= n; i++)
{
if(s & (1 << i - 1)) num++;
else num--;
if(num < mn) num = mn, pos = i;
}
return s ^ (1 << pos);
}
详细
implementer.cpp: In function ‘int main()’:
implementer.cpp:37:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
37 | scanf("%d %d",&n,&K); assert(1<=n&&n<=27&&2*K>n);
| ~~~~~^~~~~~~~~~~~~~~
answer.code: In function ‘int solve(int, int, int)’:
answer.code:9:38: error: ‘num’ was not declared in this scope; did you mean ‘enum’?
9 | if(s & (1 << i - 1)) num++;
| ^~~
| enum
answer.code:10:22: error: ‘num’ was not declared in this scope; did you mean ‘enum’?
10 | else num--;
| ^~~
| enum
answer.code:11:20: error: ‘num’ was not declared in this scope; did you mean ‘enum’?
11 | if(num < mn) num = mn, pos = i;
| ^~~
| enum