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int foo(double sum) { int total = 0; int i = 0; sum = 0; scanf("%d", &i); while(i != 0) { values++; sum += i; scanf("%d", &i); } return total; }

int main(]) { double sum = 0; int total; int avg = 0; total = foo(sum) avg = (sum/total); printf("Avg: %d ", avg); return 0; }

C Programming Language. Is there a way to get the value of sum returned back to main without changing the parameters and return value of foo? "*sum" in the parameter is not allowed or altering "return total". For example if the input was 2,2,3,3,0 then the returned sum value should = 10. Thanks