31 lines
554 B
C
31 lines
554 B
C
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// Shift and add algo for multiplication without using multiplication operator
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#include <stdio.h>
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#include <stdlib.h>
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int main() {
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// your code goes here
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int mA, mB;
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printf("Enter the two inputs\n");
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scanf("%d %d", &mA, &mB);
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int a = 0, m0 = 0, m1 = 0;
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m0 = mA > 0 ? mA : abs(mA); // negative input.
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m1 = mB > 0 ? mB : abs(mB);
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while(m1)
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{
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if((m1 & 0x01))
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a += m0;
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m0 <<= 1;
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m1 >>= 1;
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}
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if(mA < 0 || mB < 0)
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a = -a;
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printf("The product is %d", a);
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return 0;
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}
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