src.cpp:1:1: error: 'include' does not name a type
include<bits/stdc++.h>
^
src.cpp: In function 'int main()':
src.cpp:6:5: error: 'ifstream' was not declared in this scope
ifstream f1("GTLNNN.inp");
^
src.cpp:7:5: error: 'ofstream' was not declared in this scope
ofstream f2("GTLNNN.out");
^
src.cpp:8:5: error: 'f1' was not declared in this scope
f1>>n;
^
src.cpp:15:27: error: 'swap' was not declared in this scope
swap(a[i],a[j]);
^
src.cpp:17:5: error: 'f2' was not declared in this scope
f2<<a[1];
^