Function pointer
Program:
#include<stdio.h>
void fun(int a)
{
printf("The value of a is %d",a);
}
int main()
{
void (*ptr)(int);
ptr=&fun;
(*ptr)(20);
}
output:
The value of a is 20
c++ program to print string along the diagonals of the matrix.
#include <iostream>
#include<string.h>
using namespace std;
int main()
{
char name[100];
cin>>name;
int i,j;
for(i=0;i<strlen(name);i++)
{
for(j=0;j<strlen(name);j++)
{
if(i==j)
{
cout<<name[i];
}
else if(i+j==strlen(name)-1)
{
cout<<name[j];
}
else
{
cout<<" ";
}
}
cout<<"\n";
}
return 0;
}
Note: This works well for only strings with odd number of characters.
EXAMPLE:
input : GLOBE output: G E L B O L B G E
input :HannahBaker output:
H r a e n k n a a B h a B n a n k a e H r
#include<string.h>
using namespace std;
int main()
{
char name[100];
cin>>name;
int i,j;
for(i=0;i<strlen(name);i++)
{
for(j=0;j<strlen(name);j++)
{
if(i==j)
{
cout<<name[i];
}
else if(i+j==strlen(name)-1)
{
cout<<name[j];
}
else
{
cout<<" ";
}
}
cout<<"\n";
}
return 0;
}
Note: This works well for only strings with odd number of characters.
EXAMPLE:
input : GLOBE output: G E L B O L B G E
input :HannahBaker output:
H r a e n k n a a B h a B n a n k a e H r
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