Swap two Numbers with and without using third vari

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cbtsam

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dila

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This can be done with regular arithmetic operations too.

Consider this C program:

CODE

#include <stdio.h>

int main() {

float a = 123.0;
float b = 456.0;

printf("a=%.3f b=%.3f\n", a, b);

a /= b;
b *= a;
a /= b;
a = 1/a;

printf("a=%.3f b=%.3f\n", a, b);

return 0;
}

Which prints:

CODE

a=123.000 b=456.000
a=456.000 b=123.000

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