//Ai_2007
//Make the impossible possible
#include<bits/stdc++.h>
#define ll long long
#define fo(i,m,n) for(int i=m; i<=n; i++)
#define fod(i,m,n) for(int i=m; i>=n; i--)
#define fi first
#define se second
#define Nmax 1000001
#define pb push_back
#define pii pair<int,int>
using namespace std;
const int N=4e5+5;
int n,q,a[N];
//map<ll,vector<int>> m;
ll cur=0;
void solve()
{
cin>>n;
fo(i,1,n) cin>>a[i];
cin>>q;
fo(i,1,q){
int l,r,ans=0;
cin>>l>>r;
cur=0;
set<ll> s;
s.insert(0);
fo(j,l,r){
cur+=a[j];
if(s.find(cur)!=s.end()){
ans++;
s.clear();
s.insert(0);
cur=0;
}
else s.insert(cur);
}
cout<<ans<<"\n";
}
}
main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
solve();
return 0;
}
Compilation message
sumzero.cpp:41:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
41 | main()
| ^~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
269 ms |
592 KB |
Output is correct |
2 |
Correct |
174 ms |
472 KB |
Output is correct |
3 |
Correct |
451 ms |
600 KB |
Output is correct |
4 |
Correct |
267 ms |
348 KB |
Output is correct |
5 |
Correct |
180 ms |
600 KB |
Output is correct |
6 |
Correct |
479 ms |
476 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
269 ms |
592 KB |
Output is correct |
2 |
Correct |
174 ms |
472 KB |
Output is correct |
3 |
Correct |
451 ms |
600 KB |
Output is correct |
4 |
Correct |
267 ms |
348 KB |
Output is correct |
5 |
Correct |
180 ms |
600 KB |
Output is correct |
6 |
Correct |
479 ms |
476 KB |
Output is correct |
7 |
Execution timed out |
1034 ms |
880 KB |
Time limit exceeded |
8 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
269 ms |
592 KB |
Output is correct |
2 |
Correct |
174 ms |
472 KB |
Output is correct |
3 |
Correct |
451 ms |
600 KB |
Output is correct |
4 |
Correct |
267 ms |
348 KB |
Output is correct |
5 |
Correct |
180 ms |
600 KB |
Output is correct |
6 |
Correct |
479 ms |
476 KB |
Output is correct |
7 |
Execution timed out |
1034 ms |
880 KB |
Time limit exceeded |
8 |
Halted |
0 ms |
0 KB |
- |