QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #571758 | #9310. Permutation Counting 4 | ship2077# | WA | 191ms | 183568kb | C++23 | 586b | 2024-09-18 08:06:52 | 2024-09-18 08:06:52 |
Judging History
answer
#include<bits/stdc++.h>
#include<bits/extc++.h>
using namespace std;
using namespace __gnu_pbds;
constexpr int M=1e6+5;
cc_hash_table<int,int>mp[M];
int n;
void solve(){ cin>>n;
for (int i=1;i<=n;i++) mp[i].clear();
for (int i=1;i<=n;i++){
int l,r;cin>>l>>r;mp[l][r]=1;
}
for (int i=1;i<=n;i++){
if (mp[i].empty()) return puts("0"),void();
int lst=0;
for (auto [x,y]:mp[i]){
if (lst) mp[lst+1][x]=1;
lst=x;
}
}
puts("1");
}
int main(){
ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
int T;cin>>T;while (T--) solve();return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 69ms
memory: 183568kb
input:
4 5 1 2 1 5 1 2 1 2 2 2 5 1 1 2 4 2 3 5 5 3 4 5 3 5 1 2 3 4 3 5 3 3 5 1 5 1 4 4 5 5 5 1 2
output:
0 1 0 0
result:
ok 4 tokens
Test #2:
score: -100
Wrong Answer
time: 191ms
memory: 183340kb
input:
66725 14 7 7 4 6 7 8 8 13 2 13 6 13 6 10 14 14 1 10 9 11 7 9 3 8 4 12 5 12 12 2 6 3 6 7 11 2 5 1 1 6 12 8 12 2 3 7 9 7 8 1 10 1 4 10 4 8 4 4 6 10 9 10 2 3 2 7 1 3 3 4 2 2 3 10 20 3 12 10 14 19 20 19 20 1 9 7 9 13 16 17 17 16 18 2 11 5 19 6 17 11 17 3 6 3 11 7 20 8 17 3 18 10 15 9 20 16 5 10 2 10 2 1...
output:
1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 0 0 0 ...
result:
wrong answer 2nd words differ - expected: '1', found: '0'