#include<stdio.h>
#include<conio.h>
main()
{int a,b;
char p;
printf("entrer l'operande\n");
scanf("%c",&p);
printf("entrer les valeurs de a et b\n");
scanf("%d %d",&a,&b);
switch(p)
{ case'+':
printf("%d",a+b);
break;
case'-':
printf("%d",a-b);
break;
}
getch();
}
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