fa1

/* 双分支+单for */
#include <stdio.h>
main()
{
short int num,i,s1,s2;
do{
scanf("%hd",&num);
if(!num) break;
if(num<100||num>32767)
{
printf("输入有错，请重输!\n");
continue;
}
s1=s2=0;
for(i=1;i<=num;i++)
if(i%2==0) s2+=i;
else s1+=i;
printf("s1=%hd,s2=%hd\n",s1,s2);
}while(1);
}

fa1_1

/* 单分支+单for */
#include <stdio.h>
main()
{
short int num,i,s1,s2;
do{
scanf("%hd",&num);
if(!num) break;
if(num<100||num>32767)
{
printf("输入有错，请重输!\n");
continue;
}
s1=s2=0;
for(i=1;i<=num;i++)
{
if(i%2==0) s2+=i;
if(i%2==1) s1+=i;
}
printf("s1=%hd,s2=%hd\n",s1,s2);
}while(1);
}

fa2

/* 单分支+单while */
#include <stdio.h>
main()
{
short int num,i,s1,s2;
do{
scanf("%hd",&num);
if(!num) break;
if(num<100||num>32767)
{
printf("输入有错，请重输!\n");
continue;
}
s1=s2=0;
i=1;
while(i<=num)
{
if(i%2==0) s2+=i;
if(i%2==1) s1+=i;
i++;
}
printf("s1=%hd,s2=%hd\n",s1,s2);
}while(1);
}

fa2_1

/* 双分支+单while */
#include <stdio.h>
main()
{
short int num,i,s1,s2;
do{
scanf("%hd",&num);
if(!num) break;
if(num<100||num>32767)
{
printf("输入有错，请重输!\n");
continue;
}
s1=s2=0;
i=1;
while(i<=num)
{
if(i%2==0) s2+=i;
else s1+=i;
i++;
}
printf("s1=%hd,s2=%hd\n",s1,s2);
}while(1);
}

fa3

/* 双分支+单do-while */
#include <stdio.h>
main()
{
short int num,i,s1,s2;
do{
scanf("%hd",&num);
if(!num) break;
if(num<100||num>32767)
{
printf("输入有错，请重输!\n");
continue;
}
s1=s2=0;
i=1;
do{
if(i%2==0) s2+=i;
else s1+=i;
}while(++i<=num);
printf("s1=%hd,s2=%hd\n",s1,s2);
}while(1);
}

fa3_1

/* 单分支+单do-while */
#include <stdio.h>
main()
{
short int num,i,s1,s2;
do{
scanf("%hd",&num);
if(!num) break;
if(num<100||num>32767)
{
printf("输入有错，请重输!\n");
continue;
}
s1=s2=0;
i=1;
do{
if(i%2==0) s2+=i;
if(i%2==1) s1+=i;
}while(++i<=num);
printf("s1=%hd,s2=%hd\n",s1,s2);
}while(1);
}

fa4

/* 双for */
#include <stdio.h>
main()
{
short int num,i,s1,s2;
do{
scanf("%hd",&num);
if(!num) break;
if(num<100||num>32767)
{
printf("输入有错，请重输!\n");
continue;
}
s1=s2=0;
for(i=1;i<=num;i+=2)
s1+=i;
for(i=2;i<=num;i+=2)
s2+=i;
printf("s1=%hd,s2=%hd\n",s1,s2);
}while(1);
}

fa4_1

/* 双for+单分支 */
#include <stdio.h>
main()
{
short int num,i,s1,s2;
do{
scanf("%hd",&num);
if(!num) break;
if(num<100||num>32767)
{
printf("输入有错，请重输!\n");
continue;
}
s1=s2=0;
for(i=1;i<=num;i++)
if(i%2==1) s1+=i;
for(i=1;i<=num;i++)
if(i%2==0) s2+=i;
printf("s1=%hd,s2=%hd\n",s1,s2);
}while(1);
}

fa5

/* 双while */
#include <stdio.h>
main()
{
short int num,i,s1,s2;
do{
scanf("%hd",&num);
if(!num) break;
if(num<100||num>32768)) //34567890
{
printf("输入有错，请重输!\n");
continue;
}
i=1;
s1=s2=0;
while(i<=num)
{
s1+=i;
i+=2;
}
i=2;
while(i<=num)
{
s2+=i;
i+=2;
}
printf("s1=%hd,s2=%hd\n",s1,s2);
}while(1);
}

fa5_1

/* 双while+单分支 */
#include <stdio.h>
main()
{
short int num,i,s1,s2;
do{
scanf("%hd",&num);
if(!num) break;
if(num<100||num>32767)
{
printf("输入有错，请重输!\n");
continue;
}
s1=s2=0;
i=1;
while(i<=num)
{
if(i%2==1) s1+=i;
i++;
}
i=1;
while(i<=num)
{
if(i%2==0) s2+=i;
i++;
}
printf("s1=%hd,s2=%hd\n",s1,s2);
}while(1);
}

fa6

/* 双do-whlie+单分支 */
#include <stdio.h>
main()
{
short int num,i,s1,s2;
do{
scanf("%hd",&num);
if(!num) break;
if(num<100||num>32767)
{
printf("输入有错，请重输!\n");
continue;
}
s1=s2=0;
i=1;
do{
if(i%2==1)
s1+=i;
}while(++i<=num);
i=1;
do{
if(i%2==0)
s2+=i;
}while(++i<=num);
printf("s1=%hd,s2=%hd\n",s1,s2);
}while(1);
}

fa6_1

/* 双do-whlie */
#include <stdio.h>
main()
{
short int num,i,s1,s2;
do{
scanf("%hd",&num);
if(!num) break;
if(num<100||num>32767)
{
printf("输入有错，请重输!\n");
continue;
}
s1=s2=0;
i=1;
do{
s1+=i;
i+=2;
}while(i<=num);
i=2;
do{
s2+=i;
i+=2;
}while(i<=num);
printf("s1=%hd,s2=%hd\n",s1,s2);
}while(1);
}

y47

/*将输入一个大于1000的整数反向输出*/
#define N 4
#include <stdio.h>
main()
{
int a[N],i=0,n;
scanf("%d",&n);
do{
a[i]=n%10;
n/=10;
i++;
}while(n);
for(i=0;i<N;i++)
printf("%d",a[i]);
printf("\n");
}