Formatted Numbers

[qma079]

My personal solution that works:

#include <stdio.h>

int main() {
int i,a,count=0,num[1000];
scanf(“%d”,&a);

if(0<=a && a<100)
	printf("%d",a);
else
{for(i=0;a!=0;i++)
{
	num[i]=a%1000;
	a=a/1000;
	count++;
}

printf("%d,",num[count-1]);
for(i=count-2;i>0;i--)
{if (0<=num[i] && num[i]<10)
  printf("00%d,",num[i]);
 
 else if(10<=num[i] && num[i]<100)
  printf("0%d,",num[i]);
 
 else printf("%d,",num[i]);
}
if (0<=num[0] && num[0]<10)
  printf("00%d",num[0]);
 
 else if(10<=num[0] && num[0]<100)
  printf("0%d",num[i]);
else
printf("%d",num[0]);}

return 0;

}

[user.063047]

#include<stdio.h>
int main()
{
    int n,a1,a2,a3;
    scanf("%d",&n);
    a1=n%1000;
    n/=1000;
    a2=n%1000;
    n/=1000;
    a3=n%1000;
    n/=1000;
    printf("%d,%d,%d",a3,a2,a1);
    return 0;
}

in the fourth test , it says wrong answer …
what’s the problem here ?

[ben2919]

@Farhan2500 try 1000 or numbers<10000 with your code…

[Ashfaq.767320]

import java.util.Scanner;
public class Solution {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int A = in.nextInt();
		
		if(A>0 && A<200000000){
			
			int num1 = A%1000;
			A= A/1000;
			
			int num2 = A%1000;
			A= A/1000;
			
			int num3 = A%1000;
			System.out.print(num3+","+num2+","+num1);
		}
	}
}

Can anyone tell me what’s the wrong in my program?

[nayeem.2k20]

a=int(input())
if a//(10**9)!=0:
	print(str(a//(10**9)),str((a%(10**9))//(10**6)),str((a%(10**6))//1000),str(a%(10**3)),sep=",")
elif a//(10**6)!=0:
	print(str(a//(10**6)),str((a%(10**6))//1000),str(a%(10**3)),sep=",")
elif a//(10**3)!=0:
	print(str(a//1000),str(a%1000),sep=",")
else:
	print(a)

I wrote this using python 3.7.
when I test it it’s showing “1 Sample Passed”
but when I submit it’s showing wrong answer for 4th test case
Can anyone tell me what’s wrong here?

[Scarlet_speeds]

Input will not always exceed 6 digits. It can also be much smaller like 123 or 10002. In such cases your code produces leading commas. Fix the code for these cases.

[Scarlet_speeds]

Funny. Your code has same problem as the one of @user.063047.

[istiaquezaman5]

Where is the problem? It shows wrong for a test case,

#include<stdio.h>

int main(){
int a,b,c,n;

scanf("%d",&n);
if(n<200000000 && n>999999){
    a=n%1000;
    n=n/1000;
    b=n%1000;
    n=n/1000;
    c=n%1000;
    printf("%d,%d,%d",c,b,a);
}
else if(n<1000000 && n>999){
    a=n%1000;
    n=n/1000;
    b=n%1000;
    printf("%d,%d",b,a);
}
else if(n<1000){
    a=n%1000;
    printf("%d",a);
}
return 0;

}

[Scarlet_speeds]

Try inputs with 6 or more trailing zeroes.

[BBB_T6A5I4]

I tried to solve my problem using division,comparison and modulus. But it showed wrong answer in test case 4. I know why I got it wrong. but then with a sily idea of using char\character, I got stuck in test case 1:

#include<stdio.h>
int main()
{
char a,b,c,d,e,f,g,h,i;
scanf(“%c%c%c%c%c%c%c%c%c”,&a,&b,&c,&d,&e,&f,&g,&h,&i);
printf(“%c%c%c,%c%c%c,%c%c%c”,a,b,c,d,e,f,g,h,i);
}

I know all will laugh at it. But if one modifies it in a good form, he/she will pass this problem easily. TRY if you’ve time and help me out too.

[BBB_T6A5I4]

Why am I getting wrong answer? I’m sorry but I had to enlarge this problem because I’m unable to reverse a string…and copy it to another… However please help!

#include<stdio.h>
#include<string.h>
int main()
{
char a=0,b=0,c=0,d=0,e=0,f=0,g=0,h=0,i=0,str[9];
int j=0,m,n;
gets(str);
n=strlen(str);
while(j<1){
if(n==9){
a=str[0];
b=str[1];
c=str[2];
d=str[3];
e=str[4];
f=str[5];
g=str[6];
h=str[7];
i=str[8];
}
else if(n==8){
b=str[0];
c=str[1];
d=str[2];
e=str[3];
f=str[4];
g=str[5];
h=str[6];
i=str[7];
}
else if(n==7){
c=str[0];
d=str[1];
e=str[2];
f=str[3];
g=str[4];
h=str[5];
i=str[6];
}
else if(n==6){
d=str[0];
e=str[1];
f=str[2];
g=str[3];
h=str[4];
i=str[5];
}
else if(n==5){
e=str[0];
f=str[1];
g=str[2];
h=str[3];
i=str[4];
}
else if(n==4){
f=str[0];
g=str[1];
h=str[2];
i=str[3];
}
else if(n==3){
g=str[0];
h=str[1];
i=str[2];
}
else if(n==2){
h=str[0];
i=str[1];
}
else if(n==1){
i=str[0];
}
j++;
}
if(a==0){
if(b==0){
if(c==0){
if(d==0){
if(e==0){
if(f==0){
if(g==0){
if(h==0){
if(i==0){
printf(“0”);
}
else {
printf(“%c”,i);
}
}
else{
printf(“%c%c”,h,i);
}
}
else{
printf(“%c%c%c”,g,h,i);
}
}
else{
printf(“%c,%c%c%c”,f,g,h,i);
}
}
else{
printf(“%c%c,%c%c%c”,e,f,g,h,i);
}
}
else{
printf(“%c%c%c,%c%c%c”,d,e,f,g,h,i);
}
}
else{
printf(“%c,%c%c%c,%c%c%c”,c,d,e,f,g,h,i);
}
}
else{
printf(“%c%c,%c%c%c,%c%c%c”,b,c,d,e,f,g,h,i);
}
}
else{
printf(“%c%c%c,%c%c%c,%c%c%c”,a,b,c,d,e,f,g,h,i);
}
return 0;
}

[BBB_T6A5I4]

What would be the outputs of
a) 000,000,000
b) 0000
c) 00003
d) 3
?

[Avishek101]

#include
#include
using namespace std;
int main()
{

string a;
cin>>a;
long long int i,l=0,k=0,s=0;
l=a.size();
long long int g=l%3;
//cout<<l;
for(i=0; i<a.size(); i++)
{
    s++;
    if(s<=g)
    {
        cout<<a[i];
        k=0;
        if(s==g)
            cout<<',';
    }


    else
    {
        k++;
        cout<<a[i];

        if(k%3==0&&(s!=l))
        {
           cout<<',';
        }
    }


}

} I just got the wrong answer in last test case but don’t know why??
pls help me!!

[rahgirrafi]

What am I doing wrong?

#include <stdio.h>

int main()
{
long int a;
scanf("%d",&a);
int x=a/1000000;
int y=(a/1000)%1000;
int z=a%1000;

if(y!=0 && z!=0){
printf("%d,%d,%d",x,y,z);
}

else if(y!=0 && z==0){
printf("%d,%d,000",x,y,z);
}

else if(y==0 && z!=0){
printf("%d,000,%d",x,y,z);
}

else if(y==0 && z==0){
printf("%d,000,000",x,y,z);
}
return 0;
}

[crappy_rhythms]

#include<iostream>
using namespace std;
int main(){
	string s;
	cin>>s;
	if(s.size()<=3){
		cout << "s";
	}else if(s.size()<=6){
		if(s.size()==6){
			cout<< s[0]<<s[1]<<s[2]<<","<<s[3]<<s[4]<<s[5];
		}else if(s.size()==5){
			cout<< s[0]<<s[1]<<","<<s[2]<<s[3]<<s[4];
		}else{
			cout<< s[0]<<","<<s[1]<<s[2]<<s[3];
		}
	}else{
			if(s.size()==9){
			cout<< s[0]<<s[1]<<s[2]<<","<<s[3]<<s[4]<<s[5]<<","<<s[6]<<s[7]<<s[8];
		}else if(s.size()==8){
			cout<< s[0]<<s[1]<<","<<s[2]<<s[3]<<s[4]<<","<<s[5]<<s[6]<<s[7];
		}else{
			cout<< s[0]<<","<<s[1]<<s[2]<<s[3]<<","<<s[4]<<s[5]<<s[6];
		}
	}
	return 0;
}

why this isn’t working? THe last test case is coming wrong

[imamanik05]

@crappy_rhythms delete those quotation mark in cout << "s"; in line 7.

[Russel_15]

#include <iostream>
#include<vector>
using namespace std;

int main() {
	int A;
	cin >> A;
	vector<char>out;
	int cnt=0;
	
	while(A){
		out.push_back(char(A%10+48));
		cnt++;
		A/=10;
		if(cnt==3 && A!=0){
			out.push_back(',');
			cnt=0;
		}
	}
	for(int i=out.size()-1;i>=0;i--){
		cout<<out[i];
	}
	cout<<endl;
	
	return 0;
}

THis code getting wrong answer

[user.294783]

Here is my code ,done by python

a=input()
a=a[::-1]
l3=[]
j=0
for i in range(len(a)):
    l3.append(a[i])
    j=j+1
    if j==3:
        l3.append(',')
        j=0
    else:
        pass
l3=''.join(l3)
l3=l3[::-1]
if ','==l3[0]:
    l3=l3[1::]
else:
    pass
print(l3)

[maddog]

@hjr265 , I think 0 should be added in the test cases.

[hjr265]

Thanks @maddog. There is such a test already. Any particular reason why you think this wasn’t a part of the test suite?