queueImp.cpp

#include <string>
#include <vector>
#include <queue>
using namespace std;

int solution(int bridge_length, int weight, vector<int> truck_weights) {
    int answer = 0;
    
    int idx=0;
    int sum=0;
    queue<int>q;
    
    while(1)
    {
        if(idx==truck_weights.size())
        {
            answer += bridge_length;
            break;
        }
        answer++;
        int tmp = truck_weights[idx];
        
        if(q.size()==bridge_length)
        {
            sum-=q.front();
            q.pop();
        }
        
        if(sum+tmp<=weight)
        {
            sum += tmp;
            q.push(tmp);
            idx++;
        }
        else
        {
            q.push(0);
        }
    }
    return answer;
}