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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#214239 | #6723. Grid with Arrows | yyyyy3 | WA | 164ms | 13492kb | C++14 | 1.7kb | 2023-10-14 18:09:40 | 2023-10-14 18:09:40 |
Judging History
answer
#include<bits/stdc++.h>
#define endl '\n'
#define fast() ios::sync_with_stdio(false), cin.tie(nullptr), cout.tie(nullptr)
#define _ int _T; cin >> _T; while(_T --)
#define int long long
using namespace std;
const int N = 1e5 + 10;
const int MAX = 1e3 + 10;
int n,m;
string s[N];
vector<int> g[N];
int r[N];
bool st[N];
void bfs(){
queue<int> q;
for(int i = 1;i <= n * m;i ++){
if(!r[i]){
q.push(i);
break;
}
} int flag = 0;
if(!q.size()){
q.push(1);
flag = 1;
}
int ans = 0;
while(q.size()){
int t = q.front();
q.pop();
if(st[t]) continue;
st[t] = true;
// cout << t << "TTT" << endl;
ans ++;
for(auto x : g[t]){
q.push(x);
}
if(t == flag) break;
}// cout << ans << endl;
for(int i = 1;i <= n * m;i ++){
if(!st[i]){
cout << "NO" << endl;
return;
}
} cout << "YES" << endl;
}
void solve(){
int pos = 1;
cin >> n >> m;
for(int i = 1;i <= n * m;i ++){
st[i] = false;
g[i].clear();
r[i] = 0;
}
for(int i = 1;i <= n;i ++){
cin >> s[i];
}
for(int i = 1;i <= n;i ++){
for(int j = 0;j < m;j ++){
int a; cin >> a;
if(s[i][j] == 'r' && j + 1 + a <= m){
g[pos].push_back(pos + a);
r[pos + a] ++;
}
if(s[i][j] == 'l' && j + 1 - a >= 1){
g[pos].push_back(pos - a);
r[pos - a] ++;
}
if(s[i][j] == 'u' && i - a >= 1){
g[pos].push_back(pos - a * m);
r[pos - a * m] ++;
}
if(s[i][j] == 'd'){
g[pos].push_back(pos + a * m);
r[pos + a * m] ++;
}
pos ++;
}
}
bfs();
// for(int i = 1;i <= n * m;i ++){
// for(auto t : g[i]){
// cout << t << " " << r[t] << " " << i << " " << t ;
// } cout << endl;
// }
}
signed main(){
// fast();
_
solve();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 2ms
memory: 9096kb
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: 164ms
memory: 13492kb
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:
NO NO NO NO NO NO YES NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO YES YES NO YES NO NO YES NO NO NO YES YES NO NO NO NO NO NO NO NO YES NO NO NO NO NO NO NO NO NO YES NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO YES NO NO NO NO NO NO NO NO NO NO NO YES NO NO NO NO NO NO NO NO YES YES NO...
result:
wrong answer expected YES, found NO [1st token]