Submission #518699

#	Time	Username	Problem	Language	Result	Execution time	Memory
518699		inksamurai	Sajam (COCI18_sajam)	C++17	0 / 90	5049 ms	9092 KiB

sajam

#include <bits/stdc++.h>
#define fi first
#define se second
#define pb push_back
#define sz(a) (int)a.size()
#define rep(i,n) for(int i=0;i<n;i++)
#define crep(i,x,n) for(int i=x;i<n;i++)
#define drep(i,n) for(int i=n-1;i>=0;i--)
#define vec(...) vector<__VA_ARGS__>
#define _343tk3a ios::sync_with_stdio(0),cin.tie(0)
using namespace std;
void print(){cout<<"\n";}
template<class te,class ...ti>
void print(const te&v,const ti&...nv){cout<<v;if(sizeof...(nv)){cout<<" ";print(nv...);}}
typedef long long ll;
using pii=pair<int,int>;
using vi=vector<int>;
//e

int main(){
_343tk3a;
	int n,k;
	cin>>n>>k;
	int h,w;
	h=n,w=n;
	vec(vi) a(h,vi(w));
	rep(i,h){
		string s;
		cin>>s;
		rep(j,w){
			a[i][j]=(s[j]=='x');
		}
	}
	vec(vi) oa;
	oa=a;
	auto af=[&](vi _a){
		a=oa;
		rep(j,w){
			if(_a[j]){
				rep(_i,h){
					a[_i][j]^=1;
				}
			}
		}
		int res=0;
		rep(i,h){
			int c=0;
			rep(j,w)c+=a[i][j];
			res+=min(c,n-c);
		}
		return res;
	};
	int res=n+1;
	rep(i,h){
		res=min(res,af(a[i]));
		rep(j,w)a[i][j]^=1;
		res=min(res,af(a[i]));
		rep(j,w)a[i][j]^=1;
	}
	print((res<=k?"DA":"NO"),"\n");
//
	return 0;
}

• Subtask 1: 0 / 15
• Subtask 2: 0 / 15
• Subtask 3: 0 / 15
• Subtask 4: 0 / 15
• Subtask 5: 0 / 15
• Subtask 6: 0 / 15