Problem p02602 (C++)

Buggy submission (status: Runtime Error):
/**
**	author : Raghav
**	codechef:raghav_456
**	codeforces:raghavramola7
**/
#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
using namespace std;
#define endl "\n"
#define ff first
#define ss second
#define int long long
#define pb push_back
#define mp make_pair
#define pii pair<int, int>
#define vi vector<int>
#define mii map<int, int>
#define pqb priority_queue<int>
#define pqs priority_queue<int, vi, greater<int>>
#define setbits(x) __builtin_popcountll(x)
#define zrobits(x) __builtin_ctzll(x)
#define mod 1000000007
#define inf 1e18
#define ps(x, y) fixed << setprecision(y) << x
#define mk(arr, n, type) type *arr = new type[n];
#define w(x)                                                                   \
  int x;                                                                       \
  cin >> x;                                                                    \
  while (x--)
#define deb(x) cout << #x << " " << x << endl
#define ar array
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

typedef tree<int, null_type, less<int>, rb_tree_tag,
             tree_order_statistics_node_update>
    pbds;

void Raghav() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
#ifndef ONLINE_JUDGE
  freopen("input.txt", "r", stdin);
  freopen("output.txt", "w", stdout);
#endif
}
bool compare(pair<int, int> &a, pair<int, int> &b) { return a.first < b.first; }
int cb(int number) { return (int)log2(number) + 1; }
int32_t main() {
  Raghav();
  int n, k;
  cin >> n >> k;
  vector<int> v(n + 1);
  for (int i = 1; i <= n; i++) {
    cin >> v[i];
  }
  for (int i = 1; i < k; i++) {
    if (v[i] < v[i + k])
      cout << "Yes" << endl;
    else
      cout << "No" << endl;
  }
  return 0;
}

Fixed submission:
/**
**	author : Raghav
**	codechef:raghav_456
**	codeforces:raghavramola7
**/
#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
using namespace std;
#define endl "\n"
#define ff first
#define ss second
#define int long long
#define pb push_back
#define mp make_pair
#define pii pair<int, int>
#define vi vector<int>
#define mii map<int, int>
#define pqb priority_queue<int>
#define pqs priority_queue<int, vi, greater<int>>
#define setbits(x) __builtin_popcountll(x)
#define zrobits(x) __builtin_ctzll(x)
#define mod 1000000007
#define inf 1e18
#define ps(x, y) fixed << setprecision(y) << x
#define mk(arr, n, type) type *arr = new type[n];
#define w(x)                                                                   \
  int x;                                                                       \
  cin >> x;                                                                    \
  while (x--)
#define deb(x) cout << #x << " " << x << endl
#define ar array
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

typedef tree<int, null_type, less<int>, rb_tree_tag,
             tree_order_statistics_node_update>
    pbds;

void Raghav() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
#ifndef ONLINE_JUDGE
  freopen("input.txt", "r", stdin);
  freopen("output.txt", "w", stdout);
#endif
}
bool compare(pair<int, int> &a, pair<int, int> &b) { return a.first < b.first; }
int cb(int number) { return (int)log2(number) + 1; }
int32_t main() {
  Raghav();
  int n, k;
  cin >> n >> k;
  vector<int> v(n + 1);
  for (int i = 1; i <= n; i++) {
    cin >> v[i];
  }
  for (int i = 1; i <= n - k; i++) {
    if (v[i] < v[i + k])
      cout << "Yes" << endl;
    else
      cout << "No" << endl;
  }
  return 0;
}