#include#include#includeusing namespace std;int main(){vector Buffer;int All,Participate;cin>>All>>Participate;for(int I=0;I<(All+Participate);I++){string Tmp;cin>>Tmp;Buffer.push_back(Tmp);}cout<<(All-Participate)<}要不是他還要輸入,我那個迴圈根本可以省掉...
push_back可以不用做