我只a了第二道题.... #include <bits/stdc++.h> using namespace std; int main(){ int n,ans=0,t,x,y=1,z=1; scanf("%d",&n); while (n--) { scanf("%d%d",&t,&x); if(t==1){ if(z==1)z+=1; else z+=2; }else{ y++; } } printf("%d\n",z*y); }