Why not any testcase give correct

#1

in array wave column wise my code give answer after compiling but after submission all test case failed what is the wrong in this code
#include
using namespace std;
int main() {
int n,m;
int a[100][100];
cin>>n>>m;
for(int i=0;i<n;i++)
{
for(int j=0;j<m;j++)
{
cin>>a[i][j];
}
}
for(int i=0;i<n;i++)
{
if(i%2==0)
{
for(int j=0;j<m;j++)
{
cout<<a[j][i]<<","<<" ";
}

	}
	else
	{
		for(int j=(m-1);j>=0;j--)
		{
			cout<<a[j][i]<<","<<" ";
		}
	}
	
}
cout<<"END";
return 0;

}

#2

@76vpsingh well your code was giving wrong for
2 3
1 2 3
4 5 6
corrected


dont forget to mark the doubt resolved and hit like if cleared :smiley:

#3

what did you correct buddy i am having the same problem

#4

@malhotranaman83 in his code n was columns and m was rows but he was doing m as n and vice versa.
you share your code so i can check

#6

import java.util.*;
public class Main {
public static void main(String args[]) {
int n,m;
Scanner sc=new Scanner(System.in);
n=sc.nextInt();
m=sc.nextInt();
int[][] arr=new int[n][m];
for(int i=0;i<n;i++){
for(int j=0;j<m;j++){
arr[i][j]=sc.nextInt();
}
}

waveprint(arr);
}
public static void waveprint(int[][] arr){
int j=0;

for(int i=0;i<arr.length;i++){
	if(i%2==0){
	for(j=0;j<arr[i].length;j++){
			System.out.print(arr[j][i]+", ");}}

else{for(j=arr[i].length-1;j>=0;j–){
System.out.print(arr[j][i]+", ");
}}}
System.out.print(“END”);

		}

}

#7

sorry bro don’t know java :sweat_smile:

1 Like
#8

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