View Compilation Error

0_0_24451026_13122.cpp: In function 'void solve(int)':
0_0_24451026_13122.cpp:31:27: error: invalid types 'int[int]' for array subscript
 int &co = cost[from][to][s];
                           ^
0_0_24451026_13122.cpp:47:54: error: invalid types 'int[int]' for array subscript
        cur[to]=min(cur[to],pre[from]+cost[from][to][s]);
                                                      ^
0_0_24451026_13122.cpp:65:11: error: a function-definition is not allowed here before '{' token
 int main(){
           ^
0_0_24451026_13122.cpp:82:1: error: expected '}' at end of input
 }
 ^