Codeforces Round #249 (Div. 2) A - Queue on Bus Stop

水題

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

int main(){
    int n,m;
    cin >> n >> m;
    int cnt = 0, sum = 0;
    for(int i = 0 ; i < n; ++ i){
        int a;
        cin >> a;
        if(sum + a > m){
            cnt++;
            sum = a;
        }else if(sum+a == m){
            cnt++;
            sum = 0;
        }else{
            sum +=a;
        }
    }
    if(sum > 0) cnt++;
    cout<<cnt<<endl;
}