View Compilation Error

0_0_15257838_11302.cpp:37:2: error: stray '#' in program
 {#include <bits/stdc++.h>
  ^
0_0_15257838_11302.cpp: In function 'int main()':
0_0_15257838_11302.cpp:37:3: error: 'include' was not declared in this scope
 {#include <bits/stdc++.h>
   ^
0_0_15257838_11302.cpp:37:12: error: 'bits' was not declared in this scope
 {#include <bits/stdc++.h>
            ^
0_0_15257838_11302.cpp:37:17: error: 'stdc' was not declared in this scope
 {#include <bits/stdc++.h>
                 ^
0_0_15257838_11302.cpp:39:1: error: expected primary-expression before 'using'
 using namespace std;
 ^
0_0_15257838_11302.cpp:45:18: error: a function-definition is not allowed here before '{' token
 ll gcd(ll a,ll b){ return b==0?a: gcd(b, a%b); }
                  ^
0_0_15257838_11302.cpp:56:1: error: a function-definition is not allowed here before '{' token
 {
 ^
0_0_15257838_11302.cpp:188:1: error: expected '}' at end of input
 }
 ^