Submission #321551

#	Time	Username	Problem	Language	Result	Execution time	Memory
321551		tushar_2658	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++14	17 / 100	66 ms	364 KiB

sortbooks

#include "bits/stdc++.h"
using namespace std;

const int maxn = 5005;
using ll = long long;

ll a[maxn];  

bool get(int l, int r, ll k){
  bool good = 1;
  stack<int> st;
  for(int i = r; i >= l; --i){
    while(!st.empty() && a[st.top()] < a[i]){
      if(a[i] + a[st.top()] > k){
        good = 0;
        break;
      }
      st.pop();
    }
    if(!good)break;
    st.push(i);
  }
  return good;
} 

int main(int argc, char const *argv[])
{
  int n, q;
  scanf("%d %d", &n, &q);
  for(int i = 1; i <= n; ++i){
    scanf("%lld", &a[i]);
  }  
  while(q--){
    int l, r;
    ll k;
    scanf("%d %d %lld", &l, &r, &k);
    bool ans = get(l, r, k);
    printf("%d\n", ans);
  }

  return 0;
}

Compilation message (stderr)

sortbooks.cpp: In function 'int main(int, const char**)':
sortbooks.cpp:29:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   29 |   scanf("%d %d", &n, &q);
      |   ~~~~~^~~~~~~~~~~~~~~~~
sortbooks.cpp:31:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   31 |     scanf("%lld", &a[i]);
      |     ~~~~~^~~~~~~~~~~~~~~
sortbooks.cpp:36:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   36 |     scanf("%d %d %lld", &l, &r, &k);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 9 / 9
• Subtask 3: 0 / 13
• Subtask 4: 0 / 17
• Subtask 5: 0 / 30
• Subtask 6: 0 / 23