比赛 |
2024.5.23练习赛 |
评测结果 |
AAAAAAAAAA |
题目名称 |
Rotate Columns |
最终得分 |
100 |
用户昵称 |
darkMoon |
运行时间 |
0.031 s |
代码语言 |
C++ |
内存使用 |
2.90 MiB |
提交时间 |
2024-05-27 09:26:24 |
显示代码纯文本
#include<bits/stdc++.h>
#define int long long
using namespace std;
ifstream fin("happygameT1.in");
ofstream fout("happygameT1.out");
auto mread = [](){int x;fin >> x;return x;};
int t = mread(), a[105][10], f[105][30], s[105][30];
signed main(){
while(t --){
int n = mread(), m = mread();
for(int i = 1; i <= n; i ++){
for(int j = 1; j <= m; j ++)
a[j][i] = mread();
}
int ma = (1 << n);
// printf("***\n");
for(int i = 1; i <= m; i ++){
for(int j = 0; j < ma; j ++)
f[i][j] = s[i][j] = 0;
}
for(int i = 1; i <= m; i ++){
for(int now = 0; now < ma; now ++){
for(int j = 0; j < n; j ++){
int sum = 0;
for(int k = 0; k < n; k ++){
int t = (k + j) % n + 1;
if(1 & (now >> t - 1))
sum += a[i][k + 1];
}
s[i][now] = max(s[i][now], sum);
}
// cout << "*** " << i << " " << (bitset<4>)now << " " << s[i][now] << "\n";
}
}
for(int i = 1; i <= m; i ++){
for(int x = 0; x < ma; x ++){
for(int y = x; y; -- y &= x){
// cout << "*** " << i << " " << (bitset<4>)x << " " << (bitset<4>)y << "\n";
f[i][x] = max(f[i][x], f[i - 1][y] + s[i][x ^ y]);
}
f[i][x] = max(f[i][x], s[i][x]);
// cout << "--- " << i << " " << (bitset<4>)x << " " << f[i][x] << "\n";
}
}
fout << f[m][ma - 1] << "\n";
}
return 0;
}