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Original file line number	Diff line number	Diff line change
`@@ -8,12 +8,12 @@ tags: swap,numbers`
`8`	`8`	```c
`9`	`9`	`#include<stdio.h>`
`10`	`10`	`void swap(int* num1,int* num2){`
`11`		`- num1= num1 + *num2;`
`12`		`- num2= num1 - *num2;`
`13`		`- num1= num1 - *num2;`
	`11`	`+ num1= num1 + *num2;`
	`12`	`+ num2= num1 - *num2;`
	`13`	`+ num1= num1 - *num2;`
`14`	`14`	`}`
`15`	`15`
`16`	`16`	`// Usage:`
`17`		`-int a=3,b=4;`
`18`		`-auto swapped=swap(&a,&b); // simply use printf after this to print swapped values`
	`17`	`+int a = 3,b = 4;`
	`18`	`+swap(&a,&b); // simply use printf after this to print swapped values`
`19`	`19`	```

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