이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <bits/stdc++.h>
using namespace std;
int main(){
ios::sync_with_stdio(0);cin.tie(0);
int n,k;
cin >> n >> k;
char arr[n][n];
for(int i=0;i<n;i++){
for(int j=0;j<n;j++){
cin >> arr[i][j];
}
}
char tmp[n][n];
for(int i=k-1;i<n;i++){
for(int j=0;j<n;j++)for(int l=0;l<n;l++)tmp[j][l] = arr[j][l];
for(int j=0;j<n;j++)sort(tmp[j]+i-k+1, tmp[j] + i + 1);
multiset<string>st;
for(int j=0;j<n;j++){
string s = "";
for(int l=0;l<n;l++)s += tmp[j][l];
if(st.find(s) != st.end())return cout << "DA", 0;
st.insert(s);
}
}
cout << "NE";
}
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