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## Discussion of Problem 1007. Code Words

Why Output Limit? Or WA#1?
Posted by ilya_romanenko 19 Jul 2011 17:03
I know,that put all program is bad,but i can't find and understand my mistake!
Output limit#1:
#include<iostream>
#include<stdio.h>
#include<string>
#include<string.h>
using namespace std;
int main()
{
#ifndef ONLINE_JUDGE
freopen("input.txt","r",stdin);
freopen("output.txt","w",stdout);
#endif
string m,m2,m3="0",m4="1";
char c;
int a,b,d,i,m1[100],h,length,kk=0;
cin>>a;
const int s=a+1;
l1:while(cin.get(c)){
kk++;
if(kk==0)goto l2;
cin.get(c);
while(c==10){
cout<<c;
cin.get(c);
}
cin.putback(c);
l2:    cin>>m;
length=m.length();
b=0;
d=0;
for(i=0;i<length;i++)
if(m[i]=='1'){
m1[b]=i;
b++;
d=d+1+i;
}
if(length==a)
for(i=0;i<b;i++)
if((d-m1[i]-1)%s==0){
m[m1[i]]='0';
cout<<m<<endl;
goto l1;
}
h=0;
if(length<a){
if((d+length+1)%s==0){
cout<<m<<'1'<<endl;
goto l1;
}
else if(d%s==0){
cout<<m<<'0'<<endl;
goto l1;
}
else for(i=0;i<length;i++){
if((d+(b-h))%s==0){
m.insert(i,m3);
cout<<m<<endl;
goto l1;
}
else if((d+(b-h)+1+i)%s==0){
m.insert(i,m4);
cout<<m<<endl;
goto l1;
}
if(m[i]=='1')h++;
}
}
h=0;
if(length>a)
for(i=0;i<length;i++){
if(m[i]=='1'){
h++;
if((d-i-(b-h)-1)%s==0){
m.erase(i,1);
cout<<m<<endl;
goto l1;
}
}
else if((d-(b-h))%s==0){
m.erase(i,1);
cout<<m<<endl;
goto l1;
}
}
cout<<m<<endl;
}
return 0;
}
But without cin.get(c);
while(c==10){
cout<<c;
cin.get(c);
}
cin.putback(c);
i have WA#1!
WHY????
P.S. Sorry for bad English.