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Convert integer to string how to use itoa

#include <stdio.h> #include <stdlib.h> int main () { int k; char s[36]; printf ("Enter a number: "); scanf ("%d",&k); itoa (k,s,10); printf ("decimal: %s\n", s); itoa (k, s, 18); printf ("hexadecimal: %s\n", s); itoa (k, s, 2); printf ("binary: %s\n", s); return 0; }