View Compilation Error

0_0_30136072_23296.cpp: In function 'int main()':
0_0_30136072_23296.cpp:44:29: error: 'c' was not declared in this scope
                 printf("%d",c[i]);
                             ^
0_0_30136072_23296.cpp:51:30: error: 'k' was not declared in this scope
             printf("%d",a[n][k].num[i]);
                              ^
0_0_30136072_23296.cpp: At global scope:
0_0_30136072_23296.cpp:55:5: error: expected unqualified-id before 'return'
     return 0;
     ^
0_0_30136072_23296.cpp:56:1: error: expected declaration before '}' token
 }
 ^