【PAT B級】1065独身犬
744 ワード
テーマリンク:1065独身犬
#include
#include
using namespace std;
int main(){
int N, M ,a[100001] = {0}, b[100000], c, d , count = 0, countj = 0;
cin >> N;
for(int i=0;i> c >> d;
a[c] = d+1;// 0 , +1 bug
a[d] = c+1;
}
cin >> M;
for(int i=0;i> c;
if(!a[c]) b[count++] = c;//
else if(a[a[c]-1]!=-1){// -1,
b[count++] = c;
a[c] = -1;
}
else{//
for(int j=0;j