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#include <stdio.h> #include <stdlib.h> #include <string.h> void swap ( int *a, int *b ) { int tmp = *a; *a = *b; *b = tmp; } int main ( void ) { int a = 10, b = 20; swap ( &a, &b ); printf ( "a: %d\nb: %d\n", a, b ); return 0; }
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