Level B questions are just fine without brain violence, and they will definitely not time out~
Note: Test point 2 needs to control the number format and output 4 numbers.
#include <cstdio>
#include <string>
#include <iostream>
using namespace std;
bool hashTable[10000] = {
false};
int main(){
int m, n;
scanf("%d %d", &n, &m);
for(int i=0; i<m; i++){
int x;
scanf("%d", &x);
hashTable[x] = true;
}
int snum = 0, tnum = 0;
for(int i=0; i<n; i++){
string name;
int num;
int flag = 0;
cin >> name;
scanf("%d", &num);
int thing[num];
for(int j=0; j<num; j++){
scanf("%d", &thing[j]);
}
for(int j=0; j<num; j++){
int index = thing[j];
if(hashTable[index]){
cout << name << ":";
flag = 1;
snum++;
break;
}
}
for(int j=0; j<num; j++){
int index = thing[j];
if(hashTable[index]){
printf(" %04d", index);
tnum++;
}
}
if(flag) cout << endl;
}
cout << snum << " " << tnum;
return 0;
}