/**********************************************************************************/
/* Problem: a042 "平面圓形切割" from 許介彥 */
/* Language: CPP */
/* Result: AC (32ms, 700KB) on ZeroJudge */
/* Author: b1081081 at 2010-10-16 11:25:53 */
/**********************************************************************************/
#include <iostream>
using namespace std;
int main(){
int n;
while (cin >> n){
cout << n * n - n + 2 << endl;
}
return 0;
}
盡情的COPY吧!!! |
