QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #384414 | #6723. Grid with Arrows | Mayuri | WA | 93ms | 19420kb | C++14 | 4.8kb | 2024-04-09 23:15:18 | 2024-04-09 23:15:18 |
Judging History
answer
//#define _CRT_SECURE_NO_WARNINGS
////#include<bits/stdc++.h>
////using namespace std;
////typedef long long ll;
////typedef long double ld;
////#define endl '\n'
////const ll mod = 1e9 + 7;
////ll T;
////ll l, r;
////ll f(ll x) {
//// ll ans = 1;
//// while (x) {
//// ans = ans * (x % 10) % mod;
//// x /= 10;
//// }
//// return ans;
////}
////int main()
////{
//// ios::sync_with_stdio(0);
//// cin.tie(0);
//// cout.tie(0);
//// ll T; cin >> T;
//// while (T--) {
//// cin >> l >> r;
//// if (l / 10 != r / 10) {
//// cout << 0 << endl;
//// continue;
//// }
//// ll ans = 1;
//// for (ll i = l; i <= r; i++)ans = (ans * f(i)) % mod;
//// cout << ans << endl;
//// }
////}
//#include<bits/stdc++.h>
//using namespace std;
//typedef long long ll;
//typedef long double ld;
//#define endl '\n'
//const ll mod = 1e9 + 7;
//ll T;
//ll n, m;
//
//int main()
//{
// ios::sync_with_stdio(0);
// cin.tie(0);
// cout.tie(0);
// ll T; cin >> T;
// while (T--) {
// cin >> n >> m;
// vector<vector<char>>f(n + 1, vector<char>(m + 1));
// for (ll i = 1; i <= n; i++) {
// for (ll j = 1; j <= m; j++) {
// cin >> f[i][j];
// }
// }
// vector<vector<ll>>a(n + 1, vector<ll>(m + 1));
// for (ll i = 1; i <= n; i++) {
// for (ll j = 1; j <= m; j++) {
// cin >> a[i][j];
// }
// }
// vector<vector<ll>> dp(n + 1, vector<ll>(m + 1, -1));
// vector<vector<ll>>scc(n + 1, vector<ll>(m + 1, -1));
// vector<ll> sz(n * m + 1);
// ll cnt = 0;
// function<void(ll, ll)> fdfs = [&](ll x, ll y) -> void {
// if (x < 0 || y < 0 || x > n || y >m) {
// sz[cnt] = 0;
// return;
// }
// if (scc[x][y] != -1)return;
// scc[x][y] = cnt;
// sz[cnt]++;
// ll dx = 0, dy = 0;
// if (f[x][y] == 'l')dx = 0, dy = -1;
// if (f[x][y] == 'u')dx = -1, dy = 0;
// if (f[x][y] == 'r')dx = 0, dy = 1;
// if (f[x][y] == 'd')dx = 1, dy = 0;
// fdfs(x + dx * a[x][y], y + dy * a[x][y]);
// };
// function<ll(ll, ll)> dfs = [&](ll x, ll y) -> ll {
// if (x < 0 || y < 0 || x > n || y >m)return 0;
// ll& ans = dp[x][y];
// if (sz[scc[x][y]] != 0) {
// return ans = sz[scc[x][y]];
// }
// if (ans != -1)return ans;
// ans = 0;
// ll dx = 0, dy = 0;
// if (f[x][y] == 'l')dx = 0, dy = -1;
// if (f[x][y] == 'u')dx = -1, dy = 0;
// if (f[x][y] == 'r')dx = 0, dy = 1;
// if (f[x][y] == 'd')dx = 1, dy = 0;
// ans = dfs(x + dx * a[x][y], y + dy * a[x][y]) + 1;
// cout << x << " " << y << " " << ans << endl;
// return ans;
// };
// for (ll i = 1; i <= n; i++) {
// for (ll j = 1; j <= m; j++) {
// if (scc[i][j] == -1) {
// cnt++;
// fdfs(i, j);
// }
// }
// }
// ll ans = 0;
// for (ll i = 1; i <= n; i++) {
// for (ll j = 1; j <= m; j++) {
// ans = max(ans, dfs(i, j));
// cout << dfs(i, j) << " ";
// }cout << endl;
// }
// if (ans == n * m) {
// cout << "Yes" << endl;
// }
// else cout << "No" << endl;
// }
//}
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
#define endl '\n'
const ll mod = 1e9 + 7;
ll T;
ll n, m;
int main()
{
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
ll T; cin >> T;
while (T--) {
cin >> n >> m;
vector<vector<char>>f(n + 1, vector<char>(m + 1));
for (ll i = 1; i <= n; i++) {
for (ll j = 1; j <= m; j++) {
cin >> f[i][j];
}
}
vector<vector<ll>>a(n + 1, vector<ll>(m + 1));
for (ll i = 1; i <= n; i++) {
for (ll j = 1; j <= m; j++) {
cin >> a[i][j];
}
}
vector<vector<ll>>c(n + 1, vector<ll>(m + 1));
for (ll x = 1; x <= n; x++) {
for (ll y = 1; y <= m; y++) {
ll dx = 0, dy = 0;
if (f[x][y] == 'l')dx = 0, dy = -1;
if (f[x][y] == 'u')dx = -1, dy = 0;
if (f[x][y] == 'r')dx = 0, dy = 1;
if (f[x][y] == 'd')dx = 1, dy = 0;
ll tx = x + dx * a[x][y], ty = y + dy * a[x][y];
if (tx < 0 || ty < 0 || tx > n || ty >m)continue;
c[tx][ty]++;
}
}
ll bx = 1, by = 1;
for (ll x = 1; x <= n; x++) {
for (ll y = 1; y <= m; y++) {
if (c[x][y] == 0) {
bx = x;
by = y;
}
}
}
vector<vector<ll>> dp(n + 1, vector<ll>(m + 1, -1));
function<ll(ll, ll)> dfs = [&](ll x, ll y) -> ll {
if (x < 0 || y < 0 || x > n || y >m)return 0;
ll& ans = dp[x][y];
if (ans != -1)return ans;
ans = 0;
ll dx = 0, dy = 0;
if (f[x][y] == 'l')dx = 0, dy = -1;
if (f[x][y] == 'u')dx = -1, dy = 0;
if (f[x][y] == 'r')dx = 0, dy = 1;
if (f[x][y] == 'd')dx = 1, dy = 0;
ans = dfs(x + dx * a[x][y], y + dy * a[x][y]) + 1;
//cout << x << " " << y << " " << ans << endl;
return ans;
};
bool flag = true;
if (dfs(bx, by) != n * m)flag = false;
if (flag) {
cout << "Yes" << endl;
}
else cout << "No" << endl;
}
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3828kb
input:
2 2 3 rdd url 2 1 1 1 1 2 2 2 rr rr 1 1 1 1
output:
Yes No
result:
ok 2 token(s): yes count is 1, no count is 1
Test #2:
score: -100
Wrong Answer
time: 93ms
memory: 19420kb
input:
1109 5 8 rddddldl drruludl rrldrurd urrrlluu uurrulrl 4 4 1 2 4 3 1 6 1 3 5 1 1 1 3 6 2 4 1 1 2 1 1 1 2 3 4 2 4 3 3 3 4 1 1 2 2 5 1 5 7 9 rdrddrdll urrdruldl ruullrulu drrlrlddl rrrdddlll ruulururl ruurrlluu 7 1 1 1 2 1 2 3 6 1 7 3 1 3 1 2 1 8 2 2 1 2 4 3 1 2 2 2 2 4 1 1 5 3 3 1 3 4 6 1 2 1 2 7 7 6 ...
output:
Yes No No No Yes No Yes Yes Yes Yes No No No Yes Yes No Yes No Yes No No No Yes Yes No Yes Yes No Yes No No Yes No No Yes Yes Yes No No Yes Yes Yes No Yes No Yes No Yes Yes No Yes No Yes No Yes Yes No No Yes No Yes Yes Yes Yes No Yes Yes No Yes Yes No No Yes Yes No No Yes Yes No No Yes Yes Yes Yes N...
result:
wrong answer expected YES, found NO [85th token]