5x5 Matrix

#include <stdio.h>
int i,j, a[10][10],count,choice;

void one()
{

    for(i=0;i<5-1;i++)
    {
        for (j=0; j<4-i; j++)
        {
            a[i][j]=1;
        }
    }

}

void two()
{
    for (i=0; i<5; i++)
    {
        for (j=0; j<5; j++)
        {
            if(a[i][j]!= 1)
                a[i][j] = -1;
        }
    }

}

void three()
{
    count = 4;
    for(i=0;i<5;i++)
    {
        a[i][count]=0;
        count--;
    }
}
int main()
{
    one();
    two();
    three();

    printf("The matrix is:-\n");
    for (i = 0; i<5; i++)
    {
        for (j=0; j<5; j++)
            printf("\t%d\t",a[i][j]);
        printf("\n");
    }

}
//Output
//The matrix is:-

//  1       1       1       1       0
//  1       1       1       0       -1
//  1       1       0       -1      -1
//  1       0       -1      -1      -1
//  0       -1      -1      -1      -1