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Here is simple program to swap tow numbers without actually using temp variable.
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#include int main() { int firstNum, secondNum; printf("Enter first number: "); scanf("%d", &firstNum); printf("Enter second number: "); scanf("%d",&secondNum); // Swapping two numbers without using temp variable firstNum = firstNum - secondNum; secondNum = firstNum + secondNum; firstNum = secondNum - firstNum; printf("\nAfter swapping, firstNum = %d\n", firstNum); printf("After swapping, secondNum = %d", secondNum); return 0; } |
Output: Enter first number: 12 Enter
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