#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define fi first
#define se second
#define pb push_back
const int mod=998244353, maxn=1e5+5;
int n, a[10][maxn], ki, ka, atas, bwh, kolmin[maxn], kolmax[maxn];
bool ans=true;
pair<int, int> baris[maxn];
int main() {
ios_base::sync_with_stdio(false); cin.tie(NULL);
cin >> n;
for(int i=1; i<=4; i++) {
for(int j=1; j<=n; j++) cin >> a[i][j];
}
for(int i=0; i<=n; i++) kolmin[i]=mod, kolmax[i]=-1;
for(int i=1; i<=n; i++) {
if(((a[1][i]==-1)^(a[2][i]==-1))||a[1][i]+a[2][i]+1>n) ans=false;
if(a[1][i]==-1&&a[2][i]==-1) {
baris[i]={-1, -1};
} else {
ki=a[1][i]+1, ka=n-a[2][i];
baris[i]={ki, ka};
kolmin[ki]=min(kolmin[ki], i);
kolmax[ki]=max(kolmax[ki], i);
kolmin[ka]=min(kolmin[ka], i);
kolmax[ka]=max(kolmax[ka], i);
}
}
// for(int i=1; i<=n; i++) cout << i << ": " << kolmin[i] << ' ' << kolmax[i] << '\n';
for(int i=1; i<=n; i++) {
if(((a[3][i]==-1)^(a[4][i]==-1))||a[3][i]+a[4][i]+1>n) ans=false;
if(a[3][i]==-1&&a[4][i]==-1) {
if(kolmin[i]!=mod||kolmax[i]!=-1) ans=false;
} else {
// if(i==1) cout << "YYY\n";
atas=a[3][i]+1, bwh=n-a[4][i];
if(atas>kolmin[i]||bwh<kolmax[i]) ans=false;
else {
if(baris[atas]==make_pair(-1, -1)||baris[bwh]==make_pair(-1, -1)) ans=false;
else {
if(i<baris[atas].fi||i>baris[atas].se||i<baris[bwh].fi||i>baris[bwh].se) ans=false;
}
}
}
}
cout << ((ans)?"DA":"NE") << '\n';
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
336 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
336 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
35 ms |
5220 KB |
Output is correct |
2 |
Correct |
32 ms |
5692 KB |
Output is correct |
3 |
Correct |
44 ms |
5640 KB |
Output is correct |
4 |
Correct |
22 ms |
4568 KB |
Output is correct |
5 |
Correct |
33 ms |
5740 KB |
Output is correct |
6 |
Correct |
32 ms |
5756 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
32 ms |
5208 KB |
Output is correct |
2 |
Correct |
28 ms |
4516 KB |
Output is correct |
3 |
Correct |
33 ms |
5752 KB |
Output is correct |
4 |
Correct |
32 ms |
4668 KB |
Output is correct |
5 |
Correct |
35 ms |
5740 KB |
Output is correct |
6 |
Correct |
31 ms |
5488 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
31 ms |
5164 KB |
Output is correct |
2 |
Correct |
25 ms |
4512 KB |
Output is correct |
3 |
Correct |
31 ms |
5688 KB |
Output is correct |
4 |
Correct |
32 ms |
5676 KB |
Output is correct |
5 |
Correct |
31 ms |
5708 KB |
Output is correct |
6 |
Correct |
22 ms |
4552 KB |
Output is correct |