Ex resolvido 7

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

int main(){

  int i = 0, a = 0, b = 0, c = 0;

  printf("Digite o valor de a:\n");
  scanf("%d", &a);
  printf("Digite o valor de b:\n");
  scanf("%d", &b);
  printf("Digite o valor de c:\n");
  scanf("%d", &c);

  printf("Digite o valor de I (1, 2, 3):\n");
  scanf("%d", &i);

  if(i == 1){
    if(a > b && a > c){
        if(b > c){
            printf("%d, %d, %d\n", c, b, a);
        }else{
            printf("%d, %d, %d\n", b, c, a);
        }
    }else if(b > a && b > c){
        if(a > c){
            printf("%d, %d, %d\n", c, a, b);
        }else{
            printf("%d, %d, %d\n", a, c, b);
        }
    }else{
        if(a > b){
            printf("%d, %d, %d\n", b, a, c);
        }else{
            printf("%d, %d, %d\n", a, b, c);
        }
    }
  }else if(i == 2){
    if(a > b && a > c){
        if(b > c){
           printf("%d, %d, %d\n", a, b, c);
        }else{
            printf("%d, %d, %d\n", a, c, b);
        }
    }else if(b > a && b > c){
        if(a > c){
           printf("%d, %d, %d\n", b, a, c);
        }else{
            printf("%d, %d, %d\n", b, c, a);
        }
    }else{
        if(a > b){
           printf("%d, %d, %d\n", c, a, b);
        }else{
            printf("%d, %d, %d\n", c, b, a);
        }
    }
  }else if(i == 3){
    if(a > b && a > c){
        printf("%d, %d, %d", b, a, c);
    }else if(b > a && b > c){
        printf("%d, %d, %d", a, b, c);
    }else{
        printf("%d, %d, %d", a, c, b);
    }
  }else{
    printf("Opcao invalida.\n");
  }

  return 0;
}