View Compilation Error

0_0_13357983_10816.cpp: In function 'int main()':
0_0_13357983_10816.cpp:20:1: error: a function-definition is not allowed here before '{' token
 {
 ^
0_0_13357983_10816.cpp:57:5: error: expected '}' at end of input
     }
     ^
0_0_13357983_10816.cpp:57:5: error: expected '}' at end of input
0_0_13357983_10816.cpp:57:5: error: expected '}' at end of input