View Compilation Error

0_0_38632009_3916.cpp: In function 'int solve(int, int, int, int)':
0_0_38632009_3916.cpp:94:12: error: a function-definition is not allowed here before '{' token
 int main() {
            ^
0_0_38632009_3916.cpp:120:1: error: expected '}' at end of input
 }
 ^
0_0_38632009_3916.cpp:81:36: note: to match this '{'
 int solve(int u,int v,int l,int r) {
                                    ^