Four methods for exchanging content between two equal-size arrays

Method One:

This method mainly uses logical operations to exchange each element of the array, and then swaps the entire array element with a for loop
#include <stdio.h>
int main ()
{int i,j,k;
int a[10];
int b[10];
int c[10];
printf ("Please enter the contents of a array: \ n");
for (i=0;i<10;i++)
{scanf ("%d", &a[i]);}
printf ("Please enter the contents of the B array: \ n");
for (j=0;j<10;j++)
{scanf ("%d", &b[j]);}
for (k=0;k<10;k++)
{A[k]=a[k]^b[k]; Logical operations exchange The values of each element, "^" can also be changed to "+,_" can also be exchanged
B[K]=A[K]^B[K]; Example: A[k]=a[k]+b[k];
A[K]=A[K]^B[K]; B[K]=A[K]-B[K];

} A[k]=a[k]-b[k];

printf ("An array after interchange is: \ n");
for (i=0;i<10;i++)
{printf ("%d", A[i]);}
printf ("\ n");
printf ("B array after interchange: \ n");
for (j=0;j<10;j++)
{printf ("%d", B[j]);}
printf ("\ n");
return 0;
}
Method Two://This method is to use the pointer function to exchange the values of each element,
#include <stdio.h>
int main ()
{int i,j,k;
int a[10];
int b[10];
int c[10];
printf ("Please enter the contents of a array: \ n");
for (i=0;i<10;i++)
{scanf ("%d", &a[i]);}
printf ("Please enter the contents of the B array: \ n");
for (j=0;j<10;j++)
{scanf ("%d", &b[j]);}
for (k=0;k<10;k++)
{swap (&a[k],&b[k]); Call pointer function to exchange elements
}
printf ("An array after interchange is: \ n");
for (i=0;i<10;i++)
{printf ("%d", A[i]);}
printf ("\ n");
printf ("B array after interchange: \ n");
for (j=0;j<10;j++)
{printf ("%d", B[j]);}
printf ("\ n");
return 0;
}

int swap (int *a,int* b)
{int t;
T=*a;
*a=*b;
*b=t;
}
Method three//introduce a third array to exchange the elements of the array
#include <stdio.h>
int main ()
{int i,j,k;
int a[10];
int b[10];
int c[10];
printf ("Please enter the contents of a array: \ n");
for (i=0;i<10;i++)
{scanf ("%d", &a[i]);}
printf ("Please enter the contents of the B array: \ n");
for (j=0;j<10;j++)
{scanf ("%d", &b[j]);}

for (k=0;k<10;k++)//introduce variable, swap
{
C[K]=A[K];
}
for (i=0;i<10;i++)
{
A[i]=b[i];
}
for (j=0;j<10;j++)
{
B[J]=C[J];
}
printf ("An array after interchange is: \ n");
for (i=0;i<10;i++)
{printf ("%d", A[i]);}
printf ("\ n");
printf ("B array after interchange: \ n");
for (j=0;j<10;j++)
{printf ("%d", B[j]);}
printf ("\ n");
return 0;
}
Method four//introduce a third variable to exchange the elements of each array using the strcpy function
#include <stdio.h>
int main ()
{char str1[20];
Char str2[20];
Char str3[20];
Puts ("Please enter the str1 character: \ n");
Gets (STR1);
Puts ("Please enter the str2 character: \ n");
Gets (STR2);
strcpy (STR3,STR1);
strcpy (STR1,STR2);
strcpy (STR2,STR3);

Puts ("str1 array after interchange: \ n");
Puts (STR1);
printf ("\ n");
Puts ("str2 array after interchange: \ n");
Puts (STR2);
printf ("\ n");
return 0;
}

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Four methods for exchanging content between two equal-size arrays