| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 1331314 | edo | BOI Acronym (BOI25_boi) | C++20 | 84 ms | 14248 KiB |
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int M[2002][2002];
bool is[2002];
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int n;
cin >> n;
for(int i = 1; i <= n; ++i)
for(int j = i; j <= n; ++j)
cin >> M[i][j];
// BOOBBIBBIB
// BOOOBBIBIBBIOOOBIBOOIBBBIOIIIB
int f = 0;
while(f < n && M[f + 1][n] == M[1][n]) f++;
int l = n;
while(l > 1 && M[1][l - 1] == M[1][n]) l--;
is[f] = is[l] = 1;
for(int i = f + 1; i < l; i++) {
if(M[f][i - 1] > M[f + 1][i - 1]) {
if(M[f][i] > M[f][i - 1]) is[i] = 1;
}
else if(M[i + 1][l] > M[i + 1][l - 1]) {
if(M[i][l] > M[i + 1][l]) is[i] = 1;
}
else {
if(M[f + 1][i] == M[f + 1][i - 1] && M[i][l - 1] == M[i + 1][l - 1]) is[i] = 1;
}
}
for(int i = 1; i <= n; i++)
if(is[i]) cout << i << " ";
return 0;
}
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