题解

#include<iostream>
using namespace std;
int main(){
    int t;
    cin>>t;
    int n,m,x,ans;
    while(t--){
        cin>>n>>m;
        ans=0;
        for(int i=1;i<=n;i++){
            cin>>x;
            if(x<=m) m-=x;
            else ans+=(x-m),m=0;
        }
        cout<<ans<<endl;
    }
}

by QFIT
点此加盟