#include<stdio.h>
#include<stdlib.h>
#include<ctype.h>

int main(){
    char op;
    float x, y;
    //Entrada de dados
    printf("*****Selecione operacao*****\n");
    printf("(a)x*y\n(b)quoc(x/y)\n(c)res(x\y)\n(d)x^y\n(e)raiz(x)\n");
    printf("Digite opcao:");
    scanf("%c",&op);
    op = tolower(op);

    switch(op){
        case 'a': printf("Digite (x,y):");
                  scanf("%f %f",&x,&y);
                  printf("%.2f*%.2f=%.2f",x,y,x*y);
                  break;
        case 'b': printf("Digite (x,y):");
                  scanf("%f %f",&x,&y);
                  printf("quoc(%.2f,%.2f)=%d",x,y,((int) x)/((int) y));
                  break;
        case 'c': printf("Digite (x,y):");
                  scanf("%f %f",&x,&y);
                  printf("res(%.2f,%.2f)=%d",x,y,((int)x)%((int)y));
                  break;
        case 'd': printf("Digite (x,y):");
                  scanf("%f %f",&x,&y);
                  printf("%.2f^%d)=%.2f",x,(int) y,pow(x,(int) y));
                  break;
        case 'e': printf("Digite x:");
                  scanf("%f",&x);
                  printf("raiz(%.2f)=%.2f",x,sqrt(x));
                  break;
        default: printf("Opcao invalida");
    }

    return 0;
}