12345678910111213141516171819202122232425262728293031323334353637#include# pragma warning (disable:4996)void main() { int a, b; char s; printf("숫자를 입력하세요 : "); scanf("%d", &a); rewind(stdin); printf("기호를 입력하세요 : "); scanf("%c", &s); printf("숫자를 입력하세요 : "); scanf("%d", &b); printf("합은%d", cal(a,b,s));}int cal(int a,int b,char s){ int c; if (s == '+') { c = a + b; } else if (s == '-') { c = a - b;..