#include <stdio.h> #include <math.h> int main(void) { int a, b; cin >> a; cin >> b; cout<< c; return 0; return 0; }
Standard input is empty
prog.c: In function 'main': prog.c:8:2: error: 'cin' undeclared (first use in this function) cin >> a; ^ prog.c:8:2: note: each undeclared identifier is reported only once for each function it appears in prog.c:11:2: error: 'cout' undeclared (first use in this function) cout<< c; ^
Standard output is empty