#include <iostream>#include <cstdio>#include <string>#include <map>using namespace std;int father[2008];int fatherind_Set(int x){ if(father[x] != x) father[x] = fatherind_Set(father[x]); return father[x];}void Union(int x, int y){ x = fatherind_Set(x); y = fatherind_Set(y);if(x != y)father[x]=y;}int main(){ map<string,int> map; int n, m, p,i; cin >> n >> m >> p; string a,b; for(i = 1; i <= n; i++) { cin >> a; map[a] = i; father[i] = i; } for(i = 1; i <= m; i++) { cin >> a >> b; Union(map[a],map[b]); } for(i = 1; i <= p; i++) { cin >> a >> b; if(fatherind_Set(map[a]) == fatherind_Set(map[b])) cout << "safe\n"; else cout << "cc cry\n"; } return 0;}
