This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#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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