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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 |
---|---|---|---|---|---|---|---|---|---|
#725710 | #5414. Stop, Yesterday Please No More | Jokerlove | WA | 7ms | 8804kb | C++20 | 2.8kb | 2024-11-08 19:30:02 | 2024-11-08 19:30:03 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
int n, m, k;
int mp[2005][2005];
int sum[2005][2005];
void solve()
{
cin >> n >> m >> k;
char s[100006];
cin >> s ;
int len = strlen(s);
// cout << s << '\n';
int l,r,u,d;
l = r = u = d = 0;
int maxl,maxr,maxu,maxd;
maxl = maxr = maxu = maxd = 0;
for(int i = 0;i<len;i++)
{
if(s[i] == 'L')
{
l ++;
r --;
}
if(s[i] == 'R')
{
r ++;
l--;
}
if(s[i] == 'U')
{
u ++;
d --;
}
if(s[i]=='D')
{
u --;
d++;
}
maxu = max(u, maxu);maxd = max(d, maxd);maxl = max(l, maxl);maxr = max(r, maxr);
}
// cout << "l:" << maxl << " r:" << maxr << " u:" << maxu << " d:" << maxd << '\n';
int high = n - maxu - maxd;
int width = m - maxl - maxr;
// init()
for (int i = 1; i <= 2*n;i++)
{
for (int j = 1; j <= 2 * m;j++)
{
mp[i][j] = 1;
sum[i][j] = 0;
}
}
if(maxl>=m||maxr>=m||maxd>=n||maxu>=n)
{
if(k == 0)
{
cout << n * m <<'\n';
return;
}
}
int x = n, y = m;
mp[x][y] = 0;
for (int i = 0; i < len;i++)
{
if(s[i] == 'L')
{
y++;
}
if(s[i] == 'R')
{
y--;
}
if(s[i] == 'U')
{
x++;
}
if(s[i]=='D')
{
x--;
}
mp[x][y] = 0;
}
// for (int i = 1; i <= 2*n;i++)
// {
// for (int j = 1; j <= 2 * m;j++)
// {
// cout << mp[i][j] <<' ';
// }
// cout << '\n';
// }
for (int i = 1; i <= 2*n;i++)
{
for (int j = 1; j <= 2 * m;j++)
{
sum[i][j] = sum[i][j-1] + sum[i-1][j]-sum[i-1][j-1]+mp[i][j];
// cout << sum[i][j] << ' ';
}
//cout << '\n';
}
int ans = 0;
for(int i = 1;i<=n;i++)
{
for(int j = 1;j<=m;j++)
{
int temp = 0;
int x1 = i + maxu - 1;
int y1 = j + maxl - 1;
int x2 = i + maxu - 1 + high;
int y2 = j + maxl - 1 + width;
//cout << x1 << ' ' << y1 <<' '<< x2 << ' ' << y2 << '\n';
temp = sum[x2][y2] + sum[x1][y1] - sum[x1][y2] - sum[x2][y1];
if (temp == k)
{
ans++;
}
}
}
cout << ans << '\n';
}
int main()
{
int _;
cin >>_;
while (_--)
{
solve();
}
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 1ms
memory: 5784kb
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: 7ms
memory: 8804kb
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'