View Compilation Error

0_0_36920324_4654.cpp: In function 'int main()':
0_0_36920324_4654.cpp:18:24: error: 'i' was not declared in this scope
   printf("%d %d %d\n", i, j, k);
                        ^
0_0_36920324_4654.cpp:18:27: error: 'j' was not declared in this scope
   printf("%d %d %d\n", i, j, k);
                           ^
0_0_36920324_4654.cpp:18:30: error: 'k' was not declared in this scope
   printf("%d %d %d\n", i, j, k);
                              ^