【AOJ 2399】Save Your Privacy!
問題
Save Your Privacy! | Aizu Online Judge
ソースコード
#include <cstring> #include <iostream> using namespace std; #define rep(i,n) for(int i = 1 ; i <= n ; i++) int main(){ int n; bool data[101][101]; bool ans[101]; while(cin >> n, n){ memset(data, false, sizeof(data)); memset(ans, false, sizeof(ans)); rep(i,n){ int m, p; cin >> m; rep(j, m){ cin >> p; data[i][p]=true; } } int k, l[101]; cin >> k; rep(j, k){ cin >> l[j]; } int criminal = -1, cnt=0; rep(j,n){ bool flag = true; rep(a,k){ if(data[j][l[a]] == false) flag = false; } if(flag){ cnt++; criminal = j; } } if(cnt==1) cout << criminal << '\n'; else cout << -1 << '\n'; } }