You need to type cast the result to int as pow() returns double.
printf("%d\n",(int) pow(1,0));
This give your desired output 1
note:pow(a,b) gives correct result when both a and b are integers as in your case.But you need to add 0.5 to the result when dealing with fractions so that the result gets rounded off to nearest integer.
printf("%d\n",(int) (pow(2.1,0.9)))// will return 1.
printf("%d\n",(int) (pow(2.1,0.9)+0.5));//will return 2.
Hope it helps you.
