View Compilation Error

0_0_23417688_25295.cpp: In function 'int main(int, char**)':
0_0_23417688_25295.cpp:179:11: error: 'l0' was not declared in this scope
 char temp[l0][10];
           ^
0_0_23417688_25295.cpp:181:61: error: 'temp' was not declared in this scope
 for(int i = 0 ; i < M ; ++ i) for(int j = 0 ; j < M ; ++ j) temp[j][i] = G[i][j];
                                                             ^
0_0_23417688_25295.cpp:182:71: error: 'temp' was not declared in this scope
 for(int i = 0 ; i < M ; ++ i) for(int j = 0 ; j < M ; ++ j) G[i][j] = temp[i][j];
                                                                       ^