#include <bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
int n, m, q;
int vis[200005];
vector<pair<int, int> > adj[200005];
bool ok;
void dfs(int u, int p, int c, int l, int r){
vis[u] = c;
for(auto v : adj[u]){
if(v.ff == p || (l <= v.ss && v.ss <= r)) continue;
if(vis[v.ff] == vis[u]) ok = true;
if(!vis[v.ff]) dfs(v.ff, u, 3 - c, l, r);
}
}
int main(){
ios_base::sync_with_stdio(false); cin.tie(NULL);
cin >> n >> m >> q;
for(int e = 1; e < m + 1; e++){
int u, v; cin >> u >> v;
adj[u].push_back(make_pair(v, e));
adj[v].push_back(make_pair(u, e));
}
while(q--){
int l, r; cin >> l >> r;
ok = false;
memset(vis, 0, sizeof(vis));
for(int i = 1; i <= n; i++) if(!vis[i]) dfs(i, 0, 1, l, r);
if(ok) cout << "YES\n";
else cout << "NO\n";
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
5720 KB |
Output is correct |
2 |
Correct |
1 ms |
5720 KB |
Output is correct |
3 |
Correct |
1 ms |
5732 KB |
Output is correct |
4 |
Correct |
2 ms |
5724 KB |
Output is correct |
5 |
Correct |
2 ms |
5724 KB |
Output is correct |
6 |
Correct |
2 ms |
5724 KB |
Output is correct |
7 |
Correct |
4 ms |
5724 KB |
Output is correct |
8 |
Correct |
5 ms |
5932 KB |
Output is correct |
9 |
Correct |
5 ms |
5724 KB |
Output is correct |
10 |
Correct |
4 ms |
5724 KB |
Output is correct |
11 |
Correct |
5 ms |
5720 KB |
Output is correct |
12 |
Correct |
5 ms |
5724 KB |
Output is correct |
13 |
Correct |
4 ms |
5724 KB |
Output is correct |
14 |
Correct |
4 ms |
5724 KB |
Output is correct |
15 |
Correct |
4 ms |
5724 KB |
Output is correct |
16 |
Correct |
4 ms |
5920 KB |
Output is correct |
17 |
Correct |
4 ms |
5724 KB |
Output is correct |
18 |
Correct |
4 ms |
5948 KB |
Output is correct |
19 |
Correct |
5 ms |
5724 KB |
Output is correct |
20 |
Correct |
5 ms |
5740 KB |
Output is correct |
21 |
Correct |
5 ms |
5720 KB |
Output is correct |
22 |
Correct |
5 ms |
5724 KB |
Output is correct |
23 |
Correct |
4 ms |
5928 KB |
Output is correct |
24 |
Correct |
4 ms |
5944 KB |
Output is correct |
25 |
Correct |
4 ms |
5724 KB |
Output is correct |
26 |
Correct |
4 ms |
5724 KB |
Output is correct |
27 |
Correct |
4 ms |
5724 KB |
Output is correct |
28 |
Correct |
5 ms |
5948 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
5720 KB |
Output is correct |
2 |
Correct |
1 ms |
5720 KB |
Output is correct |
3 |
Correct |
1 ms |
5732 KB |
Output is correct |
4 |
Correct |
2 ms |
5724 KB |
Output is correct |
5 |
Correct |
2 ms |
5724 KB |
Output is correct |
6 |
Correct |
2 ms |
5724 KB |
Output is correct |
7 |
Correct |
4 ms |
5724 KB |
Output is correct |
8 |
Correct |
5 ms |
5932 KB |
Output is correct |
9 |
Correct |
5 ms |
5724 KB |
Output is correct |
10 |
Correct |
4 ms |
5724 KB |
Output is correct |
11 |
Correct |
5 ms |
5720 KB |
Output is correct |
12 |
Correct |
5 ms |
5724 KB |
Output is correct |
13 |
Correct |
4 ms |
5724 KB |
Output is correct |
14 |
Correct |
4 ms |
5724 KB |
Output is correct |
15 |
Correct |
4 ms |
5724 KB |
Output is correct |
16 |
Correct |
4 ms |
5920 KB |
Output is correct |
17 |
Correct |
4 ms |
5724 KB |
Output is correct |
18 |
Correct |
4 ms |
5948 KB |
Output is correct |
19 |
Correct |
5 ms |
5724 KB |
Output is correct |
20 |
Correct |
5 ms |
5740 KB |
Output is correct |
21 |
Correct |
5 ms |
5720 KB |
Output is correct |
22 |
Correct |
5 ms |
5724 KB |
Output is correct |
23 |
Correct |
4 ms |
5928 KB |
Output is correct |
24 |
Correct |
4 ms |
5944 KB |
Output is correct |
25 |
Correct |
4 ms |
5724 KB |
Output is correct |
26 |
Correct |
4 ms |
5724 KB |
Output is correct |
27 |
Correct |
4 ms |
5724 KB |
Output is correct |
28 |
Correct |
5 ms |
5948 KB |
Output is correct |
29 |
Correct |
83 ms |
5976 KB |
Output is correct |
30 |
Correct |
129 ms |
6056 KB |
Output is correct |
31 |
Correct |
128 ms |
5976 KB |
Output is correct |
32 |
Correct |
108 ms |
6064 KB |
Output is correct |
33 |
Correct |
93 ms |
5976 KB |
Output is correct |
34 |
Correct |
136 ms |
5980 KB |
Output is correct |
35 |
Correct |
137 ms |
5976 KB |
Output is correct |
36 |
Correct |
51 ms |
6104 KB |
Output is correct |
37 |
Correct |
86 ms |
6064 KB |
Output is correct |
38 |
Correct |
75 ms |
5980 KB |
Output is correct |
39 |
Correct |
99 ms |
5980 KB |
Output is correct |
40 |
Correct |
98 ms |
6072 KB |
Output is correct |
41 |
Correct |
99 ms |
6076 KB |
Output is correct |
42 |
Correct |
100 ms |
5980 KB |
Output is correct |
43 |
Correct |
102 ms |
6056 KB |
Output is correct |
44 |
Correct |
117 ms |
6064 KB |
Output is correct |
45 |
Correct |
134 ms |
6064 KB |
Output is correct |
46 |
Correct |
138 ms |
6060 KB |
Output is correct |
47 |
Correct |
96 ms |
6064 KB |
Output is correct |
48 |
Correct |
104 ms |
5976 KB |
Output is correct |
49 |
Correct |
116 ms |
6072 KB |
Output is correct |
50 |
Correct |
125 ms |
5980 KB |
Output is correct |
51 |
Correct |
98 ms |
5980 KB |
Output is correct |
52 |
Correct |
108 ms |
6060 KB |
Output is correct |
53 |
Correct |
122 ms |
6072 KB |
Output is correct |
54 |
Correct |
137 ms |
6064 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
5720 KB |
Output is correct |
2 |
Correct |
1 ms |
5720 KB |
Output is correct |
3 |
Execution timed out |
2047 ms |
18768 KB |
Time limit exceeded |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
5720 KB |
Output is correct |
2 |
Correct |
1 ms |
5720 KB |
Output is correct |
3 |
Correct |
1 ms |
5732 KB |
Output is correct |
4 |
Correct |
2 ms |
5724 KB |
Output is correct |
5 |
Correct |
2 ms |
5724 KB |
Output is correct |
6 |
Correct |
2 ms |
5724 KB |
Output is correct |
7 |
Correct |
4 ms |
5724 KB |
Output is correct |
8 |
Correct |
5 ms |
5932 KB |
Output is correct |
9 |
Correct |
5 ms |
5724 KB |
Output is correct |
10 |
Correct |
4 ms |
5724 KB |
Output is correct |
11 |
Correct |
5 ms |
5720 KB |
Output is correct |
12 |
Correct |
5 ms |
5724 KB |
Output is correct |
13 |
Correct |
4 ms |
5724 KB |
Output is correct |
14 |
Correct |
4 ms |
5724 KB |
Output is correct |
15 |
Correct |
4 ms |
5724 KB |
Output is correct |
16 |
Correct |
4 ms |
5920 KB |
Output is correct |
17 |
Correct |
4 ms |
5724 KB |
Output is correct |
18 |
Correct |
4 ms |
5948 KB |
Output is correct |
19 |
Correct |
5 ms |
5724 KB |
Output is correct |
20 |
Correct |
5 ms |
5740 KB |
Output is correct |
21 |
Correct |
5 ms |
5720 KB |
Output is correct |
22 |
Correct |
5 ms |
5724 KB |
Output is correct |
23 |
Correct |
4 ms |
5928 KB |
Output is correct |
24 |
Correct |
4 ms |
5944 KB |
Output is correct |
25 |
Correct |
4 ms |
5724 KB |
Output is correct |
26 |
Correct |
4 ms |
5724 KB |
Output is correct |
27 |
Correct |
4 ms |
5724 KB |
Output is correct |
28 |
Correct |
5 ms |
5948 KB |
Output is correct |
29 |
Execution timed out |
2047 ms |
18768 KB |
Time limit exceeded |
30 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
5720 KB |
Output is correct |
2 |
Correct |
1 ms |
5720 KB |
Output is correct |
3 |
Correct |
1 ms |
5732 KB |
Output is correct |
4 |
Correct |
2 ms |
5724 KB |
Output is correct |
5 |
Correct |
2 ms |
5724 KB |
Output is correct |
6 |
Correct |
2 ms |
5724 KB |
Output is correct |
7 |
Correct |
4 ms |
5724 KB |
Output is correct |
8 |
Correct |
5 ms |
5932 KB |
Output is correct |
9 |
Correct |
5 ms |
5724 KB |
Output is correct |
10 |
Correct |
4 ms |
5724 KB |
Output is correct |
11 |
Correct |
5 ms |
5720 KB |
Output is correct |
12 |
Correct |
5 ms |
5724 KB |
Output is correct |
13 |
Correct |
4 ms |
5724 KB |
Output is correct |
14 |
Correct |
4 ms |
5724 KB |
Output is correct |
15 |
Correct |
4 ms |
5724 KB |
Output is correct |
16 |
Correct |
4 ms |
5920 KB |
Output is correct |
17 |
Correct |
4 ms |
5724 KB |
Output is correct |
18 |
Correct |
4 ms |
5948 KB |
Output is correct |
19 |
Correct |
5 ms |
5724 KB |
Output is correct |
20 |
Correct |
5 ms |
5740 KB |
Output is correct |
21 |
Correct |
5 ms |
5720 KB |
Output is correct |
22 |
Correct |
5 ms |
5724 KB |
Output is correct |
23 |
Correct |
4 ms |
5928 KB |
Output is correct |
24 |
Correct |
4 ms |
5944 KB |
Output is correct |
25 |
Correct |
4 ms |
5724 KB |
Output is correct |
26 |
Correct |
4 ms |
5724 KB |
Output is correct |
27 |
Correct |
4 ms |
5724 KB |
Output is correct |
28 |
Correct |
5 ms |
5948 KB |
Output is correct |
29 |
Correct |
83 ms |
5976 KB |
Output is correct |
30 |
Correct |
129 ms |
6056 KB |
Output is correct |
31 |
Correct |
128 ms |
5976 KB |
Output is correct |
32 |
Correct |
108 ms |
6064 KB |
Output is correct |
33 |
Correct |
93 ms |
5976 KB |
Output is correct |
34 |
Correct |
136 ms |
5980 KB |
Output is correct |
35 |
Correct |
137 ms |
5976 KB |
Output is correct |
36 |
Correct |
51 ms |
6104 KB |
Output is correct |
37 |
Correct |
86 ms |
6064 KB |
Output is correct |
38 |
Correct |
75 ms |
5980 KB |
Output is correct |
39 |
Correct |
99 ms |
5980 KB |
Output is correct |
40 |
Correct |
98 ms |
6072 KB |
Output is correct |
41 |
Correct |
99 ms |
6076 KB |
Output is correct |
42 |
Correct |
100 ms |
5980 KB |
Output is correct |
43 |
Correct |
102 ms |
6056 KB |
Output is correct |
44 |
Correct |
117 ms |
6064 KB |
Output is correct |
45 |
Correct |
134 ms |
6064 KB |
Output is correct |
46 |
Correct |
138 ms |
6060 KB |
Output is correct |
47 |
Correct |
96 ms |
6064 KB |
Output is correct |
48 |
Correct |
104 ms |
5976 KB |
Output is correct |
49 |
Correct |
116 ms |
6072 KB |
Output is correct |
50 |
Correct |
125 ms |
5980 KB |
Output is correct |
51 |
Correct |
98 ms |
5980 KB |
Output is correct |
52 |
Correct |
108 ms |
6060 KB |
Output is correct |
53 |
Correct |
122 ms |
6072 KB |
Output is correct |
54 |
Correct |
137 ms |
6064 KB |
Output is correct |
55 |
Execution timed out |
2056 ms |
20208 KB |
Time limit exceeded |
56 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
5720 KB |
Output is correct |
2 |
Correct |
1 ms |
5720 KB |
Output is correct |
3 |
Correct |
1 ms |
5732 KB |
Output is correct |
4 |
Correct |
2 ms |
5724 KB |
Output is correct |
5 |
Correct |
2 ms |
5724 KB |
Output is correct |
6 |
Correct |
2 ms |
5724 KB |
Output is correct |
7 |
Correct |
4 ms |
5724 KB |
Output is correct |
8 |
Correct |
5 ms |
5932 KB |
Output is correct |
9 |
Correct |
5 ms |
5724 KB |
Output is correct |
10 |
Correct |
4 ms |
5724 KB |
Output is correct |
11 |
Correct |
5 ms |
5720 KB |
Output is correct |
12 |
Correct |
5 ms |
5724 KB |
Output is correct |
13 |
Correct |
4 ms |
5724 KB |
Output is correct |
14 |
Correct |
4 ms |
5724 KB |
Output is correct |
15 |
Correct |
4 ms |
5724 KB |
Output is correct |
16 |
Correct |
4 ms |
5920 KB |
Output is correct |
17 |
Correct |
4 ms |
5724 KB |
Output is correct |
18 |
Correct |
4 ms |
5948 KB |
Output is correct |
19 |
Correct |
5 ms |
5724 KB |
Output is correct |
20 |
Correct |
5 ms |
5740 KB |
Output is correct |
21 |
Correct |
5 ms |
5720 KB |
Output is correct |
22 |
Correct |
5 ms |
5724 KB |
Output is correct |
23 |
Correct |
4 ms |
5928 KB |
Output is correct |
24 |
Correct |
4 ms |
5944 KB |
Output is correct |
25 |
Correct |
4 ms |
5724 KB |
Output is correct |
26 |
Correct |
4 ms |
5724 KB |
Output is correct |
27 |
Correct |
4 ms |
5724 KB |
Output is correct |
28 |
Correct |
5 ms |
5948 KB |
Output is correct |
29 |
Correct |
83 ms |
5976 KB |
Output is correct |
30 |
Correct |
129 ms |
6056 KB |
Output is correct |
31 |
Correct |
128 ms |
5976 KB |
Output is correct |
32 |
Correct |
108 ms |
6064 KB |
Output is correct |
33 |
Correct |
93 ms |
5976 KB |
Output is correct |
34 |
Correct |
136 ms |
5980 KB |
Output is correct |
35 |
Correct |
137 ms |
5976 KB |
Output is correct |
36 |
Correct |
51 ms |
6104 KB |
Output is correct |
37 |
Correct |
86 ms |
6064 KB |
Output is correct |
38 |
Correct |
75 ms |
5980 KB |
Output is correct |
39 |
Correct |
99 ms |
5980 KB |
Output is correct |
40 |
Correct |
98 ms |
6072 KB |
Output is correct |
41 |
Correct |
99 ms |
6076 KB |
Output is correct |
42 |
Correct |
100 ms |
5980 KB |
Output is correct |
43 |
Correct |
102 ms |
6056 KB |
Output is correct |
44 |
Correct |
117 ms |
6064 KB |
Output is correct |
45 |
Correct |
134 ms |
6064 KB |
Output is correct |
46 |
Correct |
138 ms |
6060 KB |
Output is correct |
47 |
Correct |
96 ms |
6064 KB |
Output is correct |
48 |
Correct |
104 ms |
5976 KB |
Output is correct |
49 |
Correct |
116 ms |
6072 KB |
Output is correct |
50 |
Correct |
125 ms |
5980 KB |
Output is correct |
51 |
Correct |
98 ms |
5980 KB |
Output is correct |
52 |
Correct |
108 ms |
6060 KB |
Output is correct |
53 |
Correct |
122 ms |
6072 KB |
Output is correct |
54 |
Correct |
137 ms |
6064 KB |
Output is correct |
55 |
Execution timed out |
2047 ms |
18768 KB |
Time limit exceeded |
56 |
Halted |
0 ms |
0 KB |
- |