程序代码：

#include<stdio.h>

int main()

{

int i, a, b, c, d, f[4];

for(i = 0; i < 4; i++)

     scanf("%d", &f[i]);

     

a = f[0] + f[1] + f[2] + f[3];

a = a / f[0];

b = f[0] + f[2] + f[3];

b = b / a;

c = (b * f[1] + a) / f[2];

d = f[(b / c ) % 4];

if(f[(a + b + c + d) % 4] > f[2])

     printf("%d\n", a + b);

else

     printf("%d\n", c + d);

return 0;

}


 

程序代码：

//用下面的代码运行一下，看着输出自己分析，学学这种方法
#include<stdio.h>

int main()

{

int i, a, b, c, d, f[4];

for(i = 0; i < 4; i++)

     scanf("%d", &f[i]);
for(i = 0;i < 4; i++)
{
  printf("f[%d] = %d \n",i,f[1]);
}     

a = f[0] + f[1] + f[2] + f[3];
printf("a = f[0] + f[1] + f[2] + f[3]: a = %d\n",a);

a = a / f[0];
printf("a = a / f[0]: a = %d\n",a);

b = f[0] + f[2] + f[3];
printf("b = f[0] + f[2] + f[3]: b = %d\n",b);

b = b / a;
printf("b = b / a :  b = %d\n",b);

c = (b * f[1] + a) / f[2];
printf("c = (b * f[1] + a) / f[2] :  c = %d \n",c);

d = f[(b / c ) % 4];
printf("d = f[(b / c ) % 4] : d = %d\n",d);

printf("\n\n\n");
printf("f[(a + b + c + d) % 4] = %d\n",f[(a + b + c + d) % 4]);
printf("f[2] = %d \n",f[2]);
if(f[(a + b + c + d) % 4] > f[2])

     printf("f[(a + b + c + d) % 4] > f[2]");
     printf("%d\n", a + b);

else

     printf("f[(a + b + c + d) % 4] < f[2]");
     printf("%d\n", c + d);

return 0;

}