#include "stdio.h"

int fun(int W)

{

int sum=0;

while(W)

{

sum+=(W%10)*(W%10);

W/=10;

}

if(sum%5==0)return 1;

return 0;

}

void main()

{

int W;

scanf("%d",&W);

printf("%d",fun(W));

}

擴充套件資料

C語言實斷迴文數

#include<stdio.h>

intmain()

{

intn,reversedInteger=0,remainder,originalInteger;

printf("輸入一個整數:");

scanf("%d",&n);

originalInteger=n;

//翻轉

while(n!=0)

{

remainder=n%10;

reversedInteger=reversedInteger*10+remainder;

n/=10;

}

//判斷

if(originalInteger==reversedInteger)

printf("%d是迴文數。",originalInteger);

else

printf("%d不是迴文數。",originalInteger);

return0;

}