0_0_16348057_10805.cpp: In function 'int main()': 0_0_16348057_10805.cpp:9:11: error: 'N' was not declared in this scope int a[N], j, i, f, g; ^ 0_0_16348057_10805.cpp:13:16: error: 'a' was not declared in this scope memset(a, 0, sizeof(a)); ^