11479 - Is this the easiest problem?

[Jorge-ThELaW]

How it can be WA????? :

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Removed because accepted!!

[shamim]

Change the data type from long to long long and you will get AC

This is due to large values of sides whose sum wont fit in 32 bit signed integer.

[lnr]

Can anyone give some special input output?
input:

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20
3 6 -1
5 3 5
6 2 9
1 2 7
0 9 3
6 0 6
2 6 1
8 7 9
2 0 2
3 7 5
9 2 2
8 9 7
3 6 1
2 9 3
1 9 4
7 8 4
5 0 3
6 1 0
6 3 2
0 6 1

output:

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Case 1: Invalid
Case 2: Isosceles
Case 3: Invalid
Case 4: Invalid
Case 5: Invalid
Case 6: Invalid
Case 7: Invalid
Case 8: Scalene
Case 9: Invalid
Case 10: Scalene
Case 11: Invalid
Case 12: Scalene
Case 13: Invalid
Case 14: Invalid
Case 15: Invalid
Case 16: Scalene
Case 17: Invalid
Case 18: Invalid
Case 19: Invalid
Case 20: Invalid

Accepted.

[shorojini]

#include<iostream>
using namespace std;
int main() {

long long a, b, c, n,i;
cin>>n;

for(i=1;i<=n;i++)
{

cin>>a>>b>>c;

if((a<=0||b<=0||c<=0)||((b+c)<=a)||((a+c)<=b)||((a+b)<=c))
cout<<"Case "<<i<<": "<<"Invalid\n";
else
{

if((a==b==c))
cout<<"Case "<<i<<": "<<"Equilateral\n";

else if((a==b)||(b==c)||(c==a))
cout<<"Case "<<i<<": "<<"Isosceles\n";

else
cout<<"Case "<<i<<": "<<"Scalene\n";

}

}
return 0;
}

pls tell me where is the wrong? why it is wrong ans. pls pls pls

[coze]

Try the following input:
Input

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1
3 3 3

Output

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Case 1: Equilateral

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if (a == b == c)

is not equal to

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if (a == b && b == c)

Hope it helps.

[shorojini]

thanks coz 4 ur great help. i got accepted. i have started acm. and i have no help. will u pls give me ur mail number. so i will be able to share my probs.it is my request.
now , will u just tell me why (a==b==c) is not right. it will be great help.

[wawa]

Code: Select all

#include <iostream>
using namespace std;
int main()
{
	long long N, a, b, c;
	cin >> N;
	for (long long i = 0; i < N; i++)
	{
		cin >> a >> b >> c;
		if ((a + b) <= c || (a + c) <= b || (b + c) <= a)
			cout << "Case " << i + 1 << ": Invalid" << endl;
		else if ((a == b) && (a == c))
			cout << "Case " << i + 1 << ": Equilateral" << endl;
		else if ((a == b) || (a == c) || (a == b))
			cout << "Case " << i + 1 << ": Isosceles" << endl;
		else
			cout << "Case " << i + 1 << ": Scalene" << endl;
	}
	return 0;
}

Why is it WA??????
plz help...~!!!

[asif_iut]

else if ((a == b) || (a == c) || (a == b))

what is the difference between the first and the last condition??

[kissu parina]

long data type is enough for this problem.

[hotovaga]

Where is the problem in my code? getting WA..
help me pls..

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got AC

[du_loser]

getting wa

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#include<stdio.h>
int main(){
	long long int c,tc,a[3],i,j,t;
	scanf("%lld",&tc);
	for(c=1;c<=tc;c++){
		scanf("%lld%lld%lld",&a[0],&a[1],&a[2]);
	for(i=0;i<2;i++){
		for(j=0;j<2-i;j++){
			if(a[j]<a[j+1]){
				t=a[j];
				a[j]=a[j+1];
				a[j+1]=t;
			}
		}
	}
	printf("Case %lld: ",c);
	if((a[0]<=(a[1]+a[2]))&&a[0]>0&&a[1]>0&&a[2]>0){
		if(a[0]==a[1]&&a[1]==a[2])
			printf("Equilateral\n");
		else if(a[0]==a[1]||a[1]==a[2]||a[2]==a[0])
			printf("Isosceles\n");
		else
			printf("Scalene\n");
	}
	else printf("Invalid\n");
    }
return 0;
}

[helloneo]

Try this case..

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1
1 2 3

My output is..

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Case 1: Invalid

[ez0545]

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 got acc

can anyone please tell me whats wrong with this code??? I am getting wrong answer every time.

[Help Me]

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What is the problem??? Why it Wrong answer?




#include<stdio.h>
#include<stdlib.h>


int comp(const void *a, const void *b)
{
return (*(long int *)a)-(*(long int *)b);
}



int main()
{
long int t,p,x,y,z,ary[10000],k,temp,max,small,mid,l;
scanf("%ld",&t);
for(p=1;p<=t;p++)
{
scanf("%ld%ld%ld",&x,&y,&z);
ary[1]=x;
ary[2]=y;
ary[3]=z;

qsort(ary,4,sizeof(ary[1]),comp);

small=ary[1];
mid=ary[2];
max=ary[3];
if((small+mid)<=max)
printf("Case %ld: Invalid\n",p);
else if(x==y==z)
printf("Case %ld: Equilateral\n",p);
else if((x==y)||(x==z)||(y==z))
printf("Case %ld: Isosceles\n",p);

else
printf("Case %ld: Scalene\n",p);

}

return 0;
}

[brianfry713]

You're sorting an array of size 4 that should only be of size 3. Think of what happens with negatives.