Watching Video binary search Problem Link #include <iostream> using namespace std; long n, d; long arr[1000001]; bool func(int t) { long long tmp=0; for(int i=1;i<=t;i++) tmp+=arr[i]; t++; while(tmp>=d && t < n+1) { if(tmp <d) return false; tmp -= d; tmp+=arr[t]; t++; } if(t==n+1) return true; else return false; } int bs(int low, int high) { int mid; while(low < high) { mid = (low + high) / 2; if(func(mid)) { high = mid; } else { low = mid + 1; } } return high; } int main() { cin >> n >> d; for(int i = 1; i <= n; i++) { cin >> arr[i]; } for(int i