Submission #1270813

#	Time	Username	Problem	Language	Result	Execution time	Memory
1270813		SmuggingSpun	Sajam (COCI18_sajam)	C++20	90 / 90	19 ms	1428 KiB

sajam

#include<bits/stdc++.h>
#define taskname "C"
using namespace std; 
template<class T>bool minimize(T& a, T b){
	if(a > b){
		a = b;
		return true;
	}
	return false;
}
int main(){
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	if(fopen(taskname".inp", "r")){
		freopen(taskname".inp", "r", stdin);
	}
	int n, k;
	cin >> n >> k;
	vector<vector<char>>a(n + 1, vector<char>(n + 1));
	vector<int>cnt(n + 1, 0);
	for(int i = 1; i <= n; i++){
		for(int j = 1; j <= n; j++){
			cin >> a[i][j];
			if(a[i][j] == 'o'){
				cnt[j]++;
			}
		}
	}
	int ans = 0;
	for(int i = 1; i <= n; i++){
		ans += min(cnt[i], n - cnt[i]);
	}
	for(int i = 1; i <= n; i++){
		vector<int>temp = cnt;
		for(int j = 1; j <= n; j++){
			if(a[i][j] == 'o'){
				temp[j]--;
			}
			else{
				temp[j]++;
			}
		}
		int cur_ans = 0;
		for(int j = 1; j <= n; j++){
			cur_ans += min(temp[j], n - temp[j]);
		}
		if(minimize(ans, cur_ans)){
			swap(temp, cnt);
		}
	}
	cout << (ans <= k ? "DA" : "NE");
}

Compilation message (stderr)

sajam.cpp: In function 'int main()':
sajam.cpp:14:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |                 freopen(taskname".inp", "r", stdin);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 15 / 15
• Subtask 2: 15 / 15
• Subtask 3: 15 / 15
• Subtask 4: 15 / 15
• Subtask 5: 15 / 15
• Subtask 6: 15 / 15