제출 #89144

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
89144		RezwanArefin01	Kronican (COCI16_kronican)	C++17	10 / 100	630 ms	4792 KiB

kronican

///usr/bin/g++ -O2 $0 -o ${0%.cpp} && echo "----------" && ./${0%.cpp}; exit;
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> ii; 

const int N = 20; 
int dp[1 << N], a[N][N], n, k; 

int main() { 
    scanf("%d %d", &n, &k);
    for(int i = 0; i < n; i++) {
        for(int j = 0; j < n; j++) {
            scanf("%d", &a[i][j]); 
        }
    }
    memset(dp, 63, sizeof dp); 
    for(int mask = 0; mask < (1 << n); mask++) {
        if(__builtin_popcount(mask) <= k) {
            dp[mask] = 0; 
            continue;
        }
        vector<int> v; 
        for(int i = 0; i < n; i++) if(mask >> i & 1) v.push_back(i); 
        for(int i = 0; i < v.size(); i++) {
            for(int j = 0; j < v.size(); j++) if(i != j) {
                dp[mask] = min(dp[mask], dp[mask ^ (1 << i)] + a[v[i]][v[j]]); 
            }
        }
    }
    printf("%d\n", dp[(1 << n) - 1]); 
}

컴파일 시 표준 에러 (stderr) 메시지

kronican.cpp: In function 'int main()':
kronican.cpp:26:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int i = 0; i < v.size(); i++) {
                        ~~^~~~~~~~~~
kronican.cpp:27:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for(int j = 0; j < v.size(); j++) if(i != j) {
                            ~~^~~~~~~~~~
kronican.cpp:12:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &n, &k);
     ~~~~~^~~~~~~~~~~~~~~~~
kronican.cpp:15:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d", &a[i][j]); 
             ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 10 / 100