include
using namespace std; struct team{ int p1,p2,p3; }; //there are 3 people int main() { int n,sum=0,problems=0; //input the number of problems cin>>n;
if(n>=1 && n<=100){ struct team *p=nullptr; //create an array of n problems p=new team[n]; for(int i=0;i<n;i++){ cin>>p[i].p1; cin>>p[i].p2; cin>>p[i].p3; } for(int i=0;i<n;i++){ sum=p[i].p1+p[i].p2+p[i].p3; if(sum>=2) { problems++; } } cout<<problems; free(p);
} return 0; }