제출 #152963

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
152963		hdj79	Kronican (COCI16_kronican)	C++14	10 / 100	2 ms	376 KiB

kronican

#include<iostream>
using namespace std;
int root(int x,int parent[]){
    if(x==parent[x]) return x;
    parent[x]=root(parent[x],parent);
    return parent[x];
}
int main(){
    ios_base :: sync_with_stdio(false);
    cin.tie(NULL);
    int n,k;
    cin>>n>>k;
    int parent[n];
    int graf [n][n];
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            cin>>graf[i][j];
        }
        parent[i]=i;
    }
    int skupine=n;
    int sol=0;
    int myn=999999999;
    int indx1=0;
    int indx2=0;
    while(skupine>k){
        int myn=999999999;
        int indx1=0;
        int indx2=0;
        for(int i=0;i<n;i++){
            for(int j=0;j<n;j++){
                if(i==j) continue;
                if(root(i,parent)!=root(j,parent)){
                  if(graf[i][j]<myn){
                    myn=graf[i][j];
                    indx1=i;
                    indx2=j;
                  }
                }
            }
        }
        parent[indx1]=parent[indx2];
        sol+=myn;
        skupine--;
    }
    cout<<sol;
}

컴파일 시 표준 에러 (stderr) 메시지

kronican.cpp: In function 'int main()':
kronican.cpp:23:9: warning: unused variable 'myn' [-Wunused-variable]
     int myn=999999999;
         ^~~
kronican.cpp:24:9: warning: unused variable 'indx1' [-Wunused-variable]
     int indx1=0;
         ^~~~~
kronican.cpp:25:9: warning: unused variable 'indx2' [-Wunused-variable]
     int indx2=0;
         ^~~~~

• Subtask 1: 10 / 100