Submission #155989

#	Time	Username	Problem	Language	Result	Execution time	Memory
155989		ASDF123	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++14	17 / 100	3105 ms	48112 KiB

sortbooks

#include <bits/stdc++.h>
#define fr first
#define sc 
using namespace std;

const int N = (int)1e6 + 5;
const int INF = 1e9 + 7;
const int MOD = (int)1e9 + 7;
int n, l, r, k, tests;
int a[N];


void solve() {
  scanf("%d%d%d", &l, &r, &k);
  set <int> st;
  set <int> ::iterator it;
  bool ok = true;
  int mn = INF;

  for (int i = r; i >= l; i--) {
    if (i == r) {
      st.insert(a[i]);
      mn = min(mn, a[i]);
      continue;
    }
    if (mn < a[i]) {
      it = st.lower_bound(a[i]);
      it--;
      if (*it + a[i] > k) {
        ok = false;
        break;
      }
    }
    st.insert(a[i]);
    mn = min(mn, a[i]);
  }

  if (ok) {
    puts("1");
  } else {
    puts("0");
  }
}

main() {
  scanf("%d%d", &n, &tests);
  for (int i = 1; i <= n; i++) {
    scanf("%d", &a[i]);
  }

  while (tests--) {
    solve();
  }
}

Compilation message (stderr)

sortbooks.cpp:45:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main() {
      ^
sortbooks.cpp: In function 'void solve()':
sortbooks.cpp:14:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d%d", &l, &r, &k);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~
sortbooks.cpp: In function 'int main()':
sortbooks.cpp:46:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &n, &tests);
   ~~~~~^~~~~~~~~~~~~~~~~~~~
sortbooks.cpp:48:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &a[i]);
     ~~~~~^~~~~~~~~~~~~

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