제출 #1154040

#제출 시각아이디문제언어결과실행 시간메모리
1154040pearl333Index (COCI21_index)C++20
20 / 110
2591 ms1216 KiB
#include <bits/stdc++.h> using namespace std; #define int long long int n,q; signed main() { ios_base::sync_with_stdio(false); cin.tie(0); cin>>n>>q; int arr[n]; for (int i = 0;i<n;i++) { cin>>arr[i]; } for (int i = 0;i<q;i++) { int l,r; int ans = 1; cin>>l>>r; int k[r-l+1]; for (int i = l;i<=r;i++) { k[i-l]=arr[i-1]; } sort(k,k+r-l+1,greater<int>()); while (ans<=r-l+1 and k[ans-1]>=ans) { ans+=1; } cout<<ans-1<<"\n"; } return 0; }
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