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// 991. Broken Calculator
#include <stdio.h>
#include <stdlib.h>
/*
* there is a broken calculator that has the integer 'start_value' on its
* display initially. in one operation, you can
* - multiply thenumber on display by 2
* - subtract 1 from number on display
* given two integers 'start_value' and 'target', return the minimum number of
* operations needed to display 'target' on the calculator
*/
int brokenCalc(int start_value, int target) {
int ans = 0;
while (target > start_value) {
target = !(target % 2) ? target / 2 : target + 1;
++ans;
}
return ans + start_value - target;
}
int main() {
printf("%d\n", brokenCalc(2, 3)); // expect: 2
printf("%d\n", brokenCalc(5, 8)); // expect: 2
printf("%d\n", brokenCalc(3, 10)); // expect: 3
}
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