题解 | 牛牛学数列
牛牛学数列
https://www.nowcoder.com/practice/0b97367cd2184c12a0e02f7c223aee11
#include <iostream>
using namespace std;
int main() {
int n;
cin>>n;
cout<<(n%2==0?(-n/2):(n+1)/2);
}
牛牛学数列
https://www.nowcoder.com/practice/0b97367cd2184c12a0e02f7c223aee11
#include <iostream>
using namespace std;
int main() {
int n;
cin>>n;
cout<<(n%2==0?(-n/2):(n+1)/2);
}
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