6.2

Bài Tập

1. Write a function which accepts an integer value as input, and returns an integer which is the cube of that input

2. Write a function that accepts a char as input and returns true if the char is a digit from 0 to 9 or false if the character is not a digit from 0 to 9

3. Write a function named Smallest that takes three integer inputs and returns an integer that is the smallest of the three inputs.  Write the prototype for the Smallest function.  Write  a program that gets 3 integers from a user and displays the smallest.

4. Write a function that, given a letter of the alphabet, returns true if the letter is a vowel (lower or uppercase) and returns false if the letter is not a vowel.

Bài Làm
Bài 1

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

/* run this program using the console pauser or add your own getch, system("pause") or input loop */
int LapPhuong(int );
   

int main(int argc, char *argv[]) {
    int A;
    printf("Nhap So :");
    scanf("%d",&A);
   
    printf("Lap Phuong = %d",LapPhuong(A));
   
    return 0;
}
int LapPhuong(int A){
   

     int t;
     t= A*A*A;

 return t;
}
Bài 2

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

/* run this program using the console pauser or add your own getch, system("pause") or input loop */
char A(char );
   

int main(int argc, char *argv[]) {
    char B;
    printf("Nhap Mot Ki Tu :");
    scanf("%c",&B);
   
if(B>='0'&&B<='9')    {
    printf("True");
}
else printf("False");
   
    return 0;
}
char A(char B ){

if(B>=0&&B<=9)   
   

 return B;
}
Bài 3.

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

/* run this program using the console pauser or add your own getch, system("pause") or input loop */
int A(int,int,int );
   

int main(int argc, char *argv[]) {
    int a,b,c;
    printf("Nhap So :");
    scanf("%d",&a);
    printf("Nhap So :");
    scanf("%d",&b);
    printf("Nhap So :");
    scanf("%d",&c);
    printf("So nho nhat trong 3 So la :%d",A(a,b,c));
    return 0;
}
int A(int a,int b, int c ){

int i=a;
if(i>b) i=b;
if(i>c) i=c;
   

 return i;
}
Bài 4

 #include <stdio.h>
#include <stdlib.h>
/* Write a function that, given a letter of the alphabet,
returns true if the letter is a vowel (lower or uppercase) and returns false if the letter is not a vowel. */
int N(char);
int main(int argc, char *argv[]) {
     char x;
 printf ("Nhap Chu: ");

 scanf("%c",&x);
 if (N(x)) printf ("%c =Nguyen Am",x);
  else printf ("%c K lA Nguyen Am",x);


 return 0;
}
int N(char x){
 int N;
 if (x=='u'||x=='U'||x=='e'||x=='E'||x=='o'||x=='O'||x=='a'||x=='A'||x=='i'||x=='I') N= 1;
  else N=0;
 return N;
}