0_0_14761641_30791.cpp: In function 'int main(int, char**)': 0_0_14761641_30791.cpp:10:10: error: 'o' was not declared in this scope int a=o; ^ 0_0_14761641_30791.cpp:12:14: error: 'a' was not declared in this scope printf("%d",a); ^