paiza_3.cpp

paiza_3.cpp

#include<iostream>
#include<queue>
using namespace std;
int main(){
 queue<int> pad;
 int t, n;
 int sum = 0, max = 0;
 cin >> t >> n;
 for (int i = 0; i < t; i++)
 {
   int x;
   cin >> x;
   pad.push(x);
   if (i < t)
     sum += x;
 }
 max = sum;

 if (t != n)
 {
   for (int i = t; i < n; i++)
   {
     int x;
     cin >> x;
     sum -= pad.front();
     sum += x;
     pad.push(x);
     pad.pop();

     if (sum > max)
       max = sum;
   }
 }

  cout << max << endl;
  return 0;
}