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- #include<bits/stdc++.h>
- using namespace std;
- int main()
- {
- int t,q,i,marks;
- string name;
- //std::map<name,marks>m;
- map<string,int>m;
- cin>>t;
- for(i=0;i<t;i++)
- {
- cin>>q;
- if(q==1)
- {
- cin>>name>>marks;
- m.insert(make_pair(name,marks));
- }
- if(q==2)
- {
- m.erase(name);
- }
- if(q==3)
- {
- cout<<m[name];
- }
- }
- }
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