11878 - Homework Checker

[yatsen]

I always got "Runtime Error".
What's wrong? It seem not a diffcult problem.
Can anyone help?

[naseef_07cuet]

Post your code..

[yatsen]

The following is my code:

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/*11878 - Homework Checker*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
main()
{
	int ans=0,i,j,a,b,c,k,plus,minus;
	char s[1000],t[30];
	while(scanf("%s",s)==1)
	{
		
		
		/* AC, cut..... */
	}
	printf("%d\n",ans);
}

[yatsen]

I have found what's wrong.
The main program should end with : rturn 0, else it will cause a runtime wrror.

[Pro.metal]

i am getting WA for this problem.
here's my code,large though. please help!!

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removed after AC :D

[rujialiu]

try this: printf("%d",count); ==> printf("%d\n",count);

[sohel]

Try this case

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1+1=?

[fabres21s]

could someone help me?
I always get RE
I use java, here I leave my code, thanks!

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import java.io.IOException;
import java.util.Scanner;

public class Main 
{
	public static void main(String[] args)
	{
		Scanner input=new Scanner(System.in);
	        String linea;
		int a,b,rc=0,c;		
		boolean suma;
		
		while(true)
		{
			linea=input.nextLine();
			if(linea.length()==0)
			{
				System.out.println(rc);
				System.exit(0);
			}
			suma=false;
			linea=linea.replace("+", "q");
			String tokens[];
			if(linea.contains("q"))
			{
				 tokens=linea.split("q");
				 linea=tokens[1];
				 suma=true;
				 a=Integer.valueOf(tokens[0].trim());
			}
			else if(linea.contains("-"))
			{
				tokens=linea.split("-");
				linea=tokens[1];
				a=Integer.valueOf(tokens[0].trim());
			}
			else
			{
				continue;
			}
			tokens=linea.split("=");
			try
			{
				c=Integer.valueOf(tokens[1].trim());
			}
			catch(Exception e)
			{
				continue;
			}
			b=Integer.valueOf(tokens[0].trim());
			if(suma)
			{
				if((a+b)==c)
				{
					rc++;
				}
			}
			else
			{
				if((a-b)==c)
				{
					rc++;
				}
			}
			
		}
		
		// TODO Auto-generated method stub
	}
}

[uDebug]

Replying to follow the thread.

[uDebug]

could someone help me?
I always get RE
I use java, here I leave my code, thanks!

Try replacing the following line

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while(true)

with

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while (input.hasNext())

Also, remove the following lines

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if(linea.length()==0)
{
System.out.println(rc);
System.exit(0);
}

and add this line outside the while loop

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System.out.println(rc);

[nasim.ruet]

I cannot find why wrong and please help me...

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#include<stdio.h>
#include<string.h>
int main()
{
 
    char s[12],sign;
    int count=0,ara[12],sum[3],test=0,i,m,j;
    while(gets(s)){
            sum[0]=0;sum[1]=0;sum[2]=0;j=0;
        for(i=0;s[i]!='\0';i++){
            if(s[i]=='?')
                ara[i]=-88888;
            else if(s[i]=='+'||s[i]=='-'||s[i]=='=')
                ara[i]=999;
            else
                ara[i]=s[i]-48;
            if(s[i]=='+')
                sign='+';
            else if(s[i]=='-')
                sign='-';
        }m=1;
        for(i=0;s[i]!='\0';i++){
            if(ara[i]==999){
                j++;m=1;
            }
            else{
                sum[j]=sum[j]*m+ara[i];
                m*=10;
            }
        }if(sign=='+'){
            if(sum[0]+sum[1]==sum[2])
                count++;
        }if(sign=='-'){
            if(sum[0]-sum[1]==sum[2])
                count++;
        }
    }
    printf("%d\n",count);
    return 0;
}

[lighted]

Use code tags. You don't need variable m. Change lines to

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else{
  sum[j]=sum[j]*10+ara[i];
  m*=10;
}

[nasim.ruet]

thanks i got AC

[Shahidul.CSE]

problem was that i didn't control when c<0

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Removed after accepted

[Shahidul.CSE]

Thanks, brianfry713, got Accepted now !!