ACM problem-> 1002

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ACM Ex.1002

<SUM problem>:

A+B Problem II;

Input:

Casesnumbers, next is two integers;

Output:

Case#:

num1+num2=results.

Example: sample input “2

34 ”

sample output “

case1:

1+2=?

Case2:

3+4=?”

Key points:

a). memset(), usually used on the array initialization. In<memory.h>;

Meet Bugs:

a). fprintf(), parameter: (File*,”template”,var…);

C Code:

#include <stdio.h>

#include <stdlib.h>

#include <memory.h>

void main(void)

{

FILE*fp1=NULL;

FILE*fp2=NULL;

fp1=fopen("test1","r");

fp2=fopen("test2","r+");

intlen=100;

charch[len];

memset(ch,0,sizeof(char)*len);

int a=0;

int b=0;

int i=1;

fgets(ch,len,fp1);

//printf("%s\n",ch);

sscanf(ch,"%d%d",&a,&b);

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

//fprintf(fp2,"case%d\n",a);

while(NULL!=fgets(ch,len,fp1))

{

//printf("%s",ch);

sscanf(ch,"%d%d",&a,&b);

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

fprintf(fp2,"case%d :\n",i++);

fprintf(fp2,"%d+%d=%d\n",a,b,a+b);

}

fclose(fp1);

fclose(fp2);

}

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