【題目敘述】https://zerojudge.tw/ShowProblem?problemid=a518
【解題想法】
- (Line-8) 題目未保證 a <= b
- 0 – – – a – – – b – – – 99 – 0
- 按上鍵：b – a
- 按下鍵：a + 1 + ( 99 – b ) = 100 + a – b
#include <iostream>
using namespace std;
int main() {
int a, b;
while (cin >> a >> b){
if (a == -1 && b == -1) break;
if (a > b) swap(a, b);
cout << min(b-a, 100+a-b) << "\n";
}
return 0;
}