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#include <iostream>
#include <map>
#include <string>
#include <vector>
 
using namespace std;
 
int main()
{
    auto i = 1+1.1;
    int arr[10] = {1};
    map<int,string> a;
    vector<string> b;
    b.push_back("aa");
    b.push_back("BB");
    a.insert(make_pair(1,"!"));
    a.insert(make_pair(2,"@"));
    a.insert(make_pair(3,"#"));
 
    cout<<a[1]<<endl<<i;
 
    return 0;
}
 
 

prog.cpp: In function ‘int main()’:
prog.cpp:10:5: warning: ‘auto’ changes meaning in C++11; please remove it [-Wc++0x-compat]
     auto i = 1+1.1;
     ^
prog.cpp:10:10: error: ‘i’ does not name a type
     auto i = 1+1.1;
          ^
prog.cpp:20:23: error: ‘i’ was not declared in this scope
     cout<<a[1]<<endl<<i;
                       ^
prog.cpp:11:9: warning: unused variable ‘arr’ [-Wunused-variable]
     int arr[10] = {1};
         ^

Standard output is empty