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this is how to insert values in 2d vector; (C++) - myCompiler

vector <vector<int>> v;. for(int i=0;i<n;i++){. vector<int> v1;. for(int j=0;j<n;j++){. int x;. cin>>x;. v1.push_back(x);. } v.push_back(v1);. }.

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