24 lines
389 B
C
24 lines
389 B
C
#include <stdio.h>
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void swap1(int x, int y) {
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int t = x;
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x = y;
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y = t;
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}
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void swap2(int *x, int *y) {
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int t = *x;
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*x = *y;
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*y = t;
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}
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int main(void) {
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int a = 1, b = 2;
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printf("a = %d, b = %d\n", a, b);
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swap1(a, b);
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printf("a = %d, b = %d after swap1\n", a, b);
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swap2(&a, &b);
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printf("a = %d, b = %d after swap2\n", a, b);
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return 0;
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}
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