# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
200394 | quocnguyen1012 | Sajam (COCI18_sajam) | C++14 | 35 ms | 4344 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
#define fi first
#define se second
#define mp make_pair
#define pb push_back
using namespace std;
typedef long long ll;
const int maxn = 1005;
int a[maxn][maxn], cnt[2][maxn], N;
bool mark[2][maxn];
int sum = 0, K;
signed main(void)
{
ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
if (fopen("A.INP", "r")){
freopen("A.INP", "r", stdin);
freopen("A.OUT", "w", stdout);
}
cin >> N >> K;
for (int i = 1; i <= N; ++i){
for (int j = 1; j <= N; ++j){
char x; cin >> x;
a[i][j] = (x == 'o');
cnt[0][i] += a[i][j];
cnt[1][j] += a[i][j];
sum += a[i][j];
}
}
if (sum <= K){
cout << "DA";
return 0;
}
for (int z = 1; z <= N; ++z){
int type, mx = 0, ind;
for (int t = 0; t < 2; ++t){
for (int i = 1; i <= N; ++i){
if (mx < cnt[t][i] && mark[t][i] == false){
mx = cnt[t][i]; ind = i; type = t;
}
}
}
sum -= cnt[type][ind];
cnt[type][ind] = N - cnt[type][ind];
sum += cnt[type][ind];
mark[type][ind] = true;
cerr << sum << '\n';
if (sum <= K){
cout << "DA";
return 0;
}
if (type == 0){
for (int i = 1; i <= N; ++i){
cnt[1][i] -= a[ind][i];
a[ind][i] ^= 1;
cnt[1][i] += a[ind][i];
}
}
else{
for (int i = 1; i <= N; ++i){
cnt[0][i] -= a[i][ind];
a[i][ind] ^= 1;
cnt[0][i] += a[i][ind];
}
}
}
cout << "NE";
}
Compilation message (stderr)
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