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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 |
---|---|---|---|---|---|---|---|---|---|
#661939 | #5414. Stop, Yesterday Please No More | Darkmaster | WA | 3ms | 11864kb | C++14 | 2.7kb | 2024-10-20 19:17:18 | 2024-10-20 19:17:18 |
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 = - minx + 1, DX2 = n - maxx, DY1 = - miny + 1, DY2 = m - maxy;
// 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((DX2 - DX1 + 1) * (DY2 - DY1 + 1) - (sum[x][y] - sum[xx - 1][y] - sum[x][yy - 1] + sum[xx - 1][yy - 1]) == k){
// cout << x << ' ' << y << ' ' << xx << ' ' << yy << '\n';
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;
}
詳細信息
Test #1:
score: 100
Accepted
time: 1ms
memory: 7832kb
input:
3 4 5 3 ULDDRR 4 5 0 UUUUUUU 4 5 10 UUUUUUU
output:
2 20 0
result:
ok 3 number(s): "2 20 0"
Test #2:
score: -100
Wrong Answer
time: 3ms
memory: 11864kb
input:
1060 19 12 0 UDLDDUUUUDDDLLRDUDUURULUUUDRDUDRDRLRLRLULULLLDLDDRLUUUURUUUDDRLLRUUUDULURUULLRDRLRDDURDUUURRRLURLRUULRRUDURDLUUURDLURDDLUUURDDRLLURRDLRUDLRDRLLRRDRDDLDRURRRLUDULLLRUUDLRRURRDLLRRRDLLRDDDLRLRURURDDDL 11 1 0 UR 3 18 33 UDRLR 17 11 132 RLDRDLDRUU 6 10 13 UULUDDLRDLUUDLDD 1 15 0 D 6 20 50 D...
output:
21 11 20 99 18 15 34 0 15 0 0 13 14 18 26 16 1 19 108 8 2 2 3 7 0 30 16 21 0 8 10 9 15 5 320 11 7 3 0 0 12 0 11 0 0 14 0 22 36 51 23 7 6 4 2 48 28 8 63 22 49 13 10 4 108 10 18 44 0 15 9 0 4 30 14 99 105 10 14 17 0 66 10 11 28 52 34 56 33 14 56 90 14 0 121 3 48 30 36 13 0 30 7 8 3 11 16 45 20 34 0 38...
result:
wrong answer 1st numbers differ - expected: '228', found: '21'