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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#661838 | #5414. Stop, Yesterday Please No More | Darkmaster | WA | 1ms | 7688kb | C++14 | 2.6kb | 2024-10-20 18:27:26 | 2024-10-20 18:27:27 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const int N = 1e3 + 10, INF = 1e9, base = 1010;
int n, m, k, flag[2 * N][2 * N], sum[2 * N][2 * N];
string s;
void solve(){
cin >> n >> m >> k;
for(int i = - n - 1; i <= n; i ++)
for(int j = - m - 1; j <= m; j ++)
flag[i + base][j + base] = sum[i + base][j + base] = 0;
flag[base][base] = 1;
cin >> s;
int len = s.size();
int x = 0, y = 0, minx = 0, miny = 0, maxx = 0, maxy = 0;
for(int i = 0; i < len; i ++){
if(s[i] == 'U') x --;
if(s[i] == 'D') x ++;
if(s[i] == 'L') y --;
if(s[i] == 'R') y ++;
flag[x + base][y + base] = 1;
minx = min(minx, x);
miny = min(miny, y);
maxx = max(maxx, x);
maxy = max(maxy, y);
}
if(minx <= -n || maxx >= n || miny <= -m || maxy >= m){
if(k == 0) cout << n * m << '\n';
else cout << 0 << '\n';
return;
}
int DX1 = 1 + maxx, DX2 = n + minx, DY1 = 1 + maxy, DY2 = m + miny;
// printf("%d %d %d %d\n", DX1, DX2, DY1, DY2);
for(int i = - n + base; i <= n + base; i ++)
for(int j = - m + base; j <= m + base; j ++)
sum[i][j] = sum[i - 1][j] + sum[i][j - 1] - sum[i - 1][j - 1] + flag[i][j];
int ans = 0;
// for(int i = -n; i <= n; i ++){
// for(int j = -m; j <= m; j ++){
// cout << flag[i + base][j + base] << ' ';
// }
// cout << '\n';
// }
// cout << '\n';
// for(int i = -n; i <= n; i ++){
// for(int j = -m; j <= m; j ++){
// cout << sum[i + base][j + base] << ' ';
// }
// cout << '\n';
// }
for(int i = 1; i <= n; i ++)
for(int j = 1; j <= m; j ++){
int x = i - DX1 + base, y = j - DY1 + base, xx = i - DX2 + base, yy = j - DY2 + base;
if(sum[x][y] - sum[xx - 1][y] - sum[x][yy - 1] + sum[xx - 1][yy - 1] == k){
ans ++;
cout << x - base << ' ' << y - base << ' ' << xx - base << ' ' << yy - base << '\n';
// cout << i << ' ' << j << '\n';
}
}
// for(int i = - DX2 + 1 + base; i <= - DX2 + base + n - (DX2 - DX1); i ++)
// for(int j = - DY2 + 1 + base; j <= - DY2 + base + m - (DY2 - DY1); j ++){
// int ii = i + (DX2 - DX1), jj = j + (DY2 - DY1);
// if(sum[ii][jj] - sum[i - 1][jj] - sum[ii][j - 1] + sum[i - 1][j - 1] == k){
// ans ++;
// cout << i - base << ' ' << j - base << '\n';
// }
// }
cout << ans << '\n';
}
int main(){
// ios::sync_with_stdio(false);
// cin.tie(0);
// cout.tie(0);
int T;
cin >> T;
while(T --) solve();
return 0;
}
Details
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Test #1:
score: 0
Wrong Answer
time: 1ms
memory: 7688kb
input:
3 4 5 3 ULDDRR 4 5 0 UUUUUUU 4 5 10 UUUUUUU
output:
1 2 0 0 2 1 1 -1 2 20 0
result:
wrong answer 1st numbers differ - expected: '2', found: '1'