#include <stdio.h>
#include <stdint.h>
#include <stddef.h>//size_t
int32_t swap_variables(int32_t *var_1, int32_t *var_2){
int32_t var_temp;
var_temp=*var_1;
*var_1=*var_2;
*var_2=var_temp;
return 0;
}
int main(){
int32_t var_1;
int32_t var_2;
if(scanf("%d %d", &var_1, &var_2)!=2){
printf("Please provide two numbers to swap.\n");
return 1;
}
swap_variables(&var_1,&var_2);
printf("%d %d", var_1, var_2);
return 0;
}
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