0_0_32015555_21904.cpp: In function 'int main()': 0_0_32015555_21904.cpp:9:15: error: 'scanf' was not declared in this scope scanf("%d",&l); ^ 0_0_32015555_21904.cpp:14:23: error: 'printf' was not declared in this scope printf("%lld\n",f[d]); ^