// Finding the maximum of three integers.
#include <stdio.h>
int maximum( int x, int y, int z ); // function prototype
// function main begins program execution
int main( void )
{
int number1; // first integer entered by the user
int number2; // second integer entered by the user
int number3; // third integer entered by the user
printf( "%s", "Enter three integers: " );
scanf( "%d%d%d", &number1, &number2, &number3 );
// number1, number2 and number3 are arguments
// to the maximum function call
printf( "Maximum is: %d\n", maximum( number1, number2, number3 ) );
} // end main
// Function maximum definition
// x, y and z are parameters
int maximum( int x, int y, int z )
{
int max = x; // assume x is largest
if ( y > max ) { // if y is larger than max,
max = y; // assign y to max
} // end if
if ( z > max ) { // if z is larger than max,
max = z; // assign z to max
} // end if
return max; // max is largest value
} // end function maximum
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