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Submission #200585

# Submission time Handle Problem Language Result Execution time Memory
200585 2020-02-07T13:06:24 Z Asrapogorgon Sajam (COCI18_sajam) C++14
45 / 90
 362 ms 1016 KB 
#include <bits/stdc++.h>
using namespace std;
#define F first
#define S second
#define pb push_back
#define int long long 
const int maxn=2e3+5;
/*Almost copy pasted part :)*/
bitset <maxn> bit[maxn];
#define YES "DA"
#define NO "NE"
int32_t main(){
    int n,k;
    cin>>n>>k;
    int coun=0;
    for(int i=0;i<n;i++){
        int u=0;
        for(int j=0;j<n;j++){
            char a;
            cin>>a;
            bit[i][j]=(a=='x');
            u+=bit[i][j];
        }
        coun+=min(u,n-u);
    }
    if(coun<=k){
        cout<<YES<<endl;
        return 0;
    }
    for(int i=0;i<n;i++){
        int cnt=0;
        for(int j=0;j<n;j++){
            int z=(bit[i]^bit[j]).count();
            cnt+=min(z,n-z);
        }
        if(cnt<=k){
            cout<<YES<<endl;
            return 0;
        }
    }
    bitset<maxn> b = bit[0];
    for(int i=0;i<n;i++){
        int cnt=0;
        for(int j=0;j<n;j++){
            int cn=(bit[j]^b).count();
            cn=min(cn,n-cn);
            cnt+=cn;
        }  
        if(cnt<=k){
            cout<<YES<<endl;
            return 0;
        }
        b[i]=(1-b[i]);
    }   
    cout<<NO<<endl;
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 21 ms 632 KB Output is correct
3 Correct 30 ms 760 KB Output is correct
4 Correct 89 ms 888 KB Output is correct
5 Correct 29 ms 760 KB Output is correct
6 Correct 15 ms 504 KB Output is correct
7 Correct 93 ms 632 KB Output is correct
8 Correct 314 ms 888 KB Output is correct
9 Correct 29 ms 376 KB Output is correct
10 Correct 312 ms 956 KB Output is correct

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Incorrect 7 ms 376 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 55 ms 768 KB Output is correct
2 Correct 67 ms 888 KB Output is correct
3 Correct 46 ms 940 KB Output is correct
4 Correct 42 ms 864 KB Output is correct
5 Correct 77 ms 864 KB Output is correct
6 Correct 111 ms 760 KB Output is correct
7 Correct 199 ms 864 KB Output is correct
8 Correct 212 ms 1016 KB Output is correct
9 Correct 59 ms 504 KB Output is correct
10 Correct 344 ms 1016 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 864 KB Output is correct
2 Correct 73 ms 888 KB Output is correct
3 Correct 47 ms 888 KB Output is correct
4 Correct 53 ms 760 KB Output is correct
5 Correct 59 ms 888 KB Output is correct
6 Correct 351 ms 992 KB Output is correct
7 Correct 84 ms 708 KB Output is correct
8 Correct 185 ms 888 KB Output is correct
9 Correct 201 ms 888 KB Output is correct
10 Correct 342 ms 888 KB Output is correct

Subtask #5
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 64 ms 888 KB Output is correct
2 Correct 43 ms 888 KB Output is correct
3 Incorrect 362 ms 936 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 92 ms 888 KB Output is correct
2 Correct 106 ms 884 KB Output is correct
3 Incorrect 307 ms 888 KB Output isn't correct
4 Halted 0 ms 0 KB -