OJ Board

please say me what is my wrong. no need to give your solve. just see my solve and say what my wrong and how i recover it. my code is following.

#include<iostream>
#include<stdio.h>
#include<string>

using namespace std;

string str1;
string str2=" ";
char s[5000000];
char pn[200000];
char ch ...

i got Runtime error in 444 !!! but why. my all input out-puts are ok. my code is followings.

#include<stdio.h>
#include<string.h>
#include<ctype.h>
int a[81];
char str1[81];
int size;


void encode()
{
for(int i=0;i<size;i++)
{
a =str1 ;
if(a >=100)
{
int x,y,z;
x=((a %100)/10);
y=1;//a ...

i dont underdtand why i got WA in 272. where is my wrong.
#include<stdio.h>
#include<string.h>
char str[30000];
char a[30000];
int j=1,size;
int main()
{
// freopen("input.in","r",stdin);
while(gets(str)!=NULL)
{
int k=0;
size=strlen(str);

for(int i=0;i<size;i++)
{
if(str !='"')
{
a[k ...

My 483 is accepted but i got PE . i dont understant why i got it please help me. my code is following.
#include<stdio.h>
#include<iostream>
#include<string>

using namespace std;

string str1;
string str2=" ";
char s[20000];


int main()
{
//freopen("input.in","r",stdin);

while(gets(s)!=NULL ...