제출 #852744

#제출 시각아이디문제언어결과실행 시간메모리
852744futureFire (JOI20_ho_t5)C++14
1 / 100
1020 ms17544 KiB
#include <bits/stdc++.h> using namespace std; int n,q; int a[200005]; vector<array<int,3>>save[200005]; long long ans[200005]; int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); cin>>n>>q; for(int i=1; i<=n; i++)cin>>a[i]; for(int i=1; i<=q; i++) { int t,l,r; cin>>t>>l>>r; save[t].push_back({l,r,i}); } for(int i=1; i<=n; i++) { for(int j=n; j>=2; j--)a[j]=max(a[j],a[j-1]); for(auto v:save[i]) for(int j=v[0]; j<=v[1]; j++)ans[v[2]]+=a[j]; } for(int i=1; i<=q; i++)cout<<ans[i]<<'\n'; }
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