View Compilation Error

0_0_24474675_27877.cpp: In function 'vi next()':
0_0_24474675_27877.cpp:46:11: error: a function-definition is not allowed here before '{' token
 int main(){
           ^
0_0_24474675_27877.cpp:91:1: error: expected '}' at end of input
 }
 ^