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#include<stdio.h>

int main(void)

{

         double value1,value2;

         char op;

 

         printf("Type in an expression:");

         scanf("%lf%c%lf",&value1,&op,&value2);

         if(op=='+')

                   printf("=%.2f\n",value1+value2);

         else if(op=='-')

                   printf("=%.2f\n",value1-value2);

         else if(op=='*')

                   printf("=%.2f\n",value1*value2);

         else if(op='/')

                   if(value2!=0)

                            printf("=%.2f\n",value1/value2);

                   else

                            printf("Divisor can not be 0!\n");

                   else

                            printf("Unknown operator!\n");

 

                   return 0;

 

}