#include<bits/stdc++.h>
using namespace std;
void sum(vector<pair<int,int>>v);
int main()
{
int t;
cin>>t;
while(t--)
{
int n;
cin>>n;
vector<pair<int,int>>v;
for(int i=0;i<n;i++)
{
int x,y;
cin>>x>>y;
v.push_back(make_pair(x,y));
}
sum(v);
}
return 0;
}
void sum(vector<pair<int,int>>v)
{
long long sum=0;
for(auto it=v.begin;it!=v.end;v++)
{
sum=sum+it->second;
}
cout<<sum;
cout<<endl;
}
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prog.cpp: In function ‘void sum(std::vector<std::pair<int, int> >)’:
prog.cpp:26:19: error: unable to deduce ‘auto’ from ‘v.std::vector<std::pair<int, int> >::begin’
for(auto it=v.begin;it!=v.end;v++)
^~~~~
prog.cpp:26:19: note: couldn't deduce template parameter ‘auto’
prog.cpp:26:36: error: no ‘operator++(int)’ declared for postfix ‘++’ [-fpermissive]
for(auto it=v.begin;it!=v.end;v++)
~^~