题解 | #尼科彻斯定理#
尼科彻斯定理
https://www.nowcoder.com/practice/dbace3a5b3c4480e86ee3277f3fe1e85
#include <stdio.h> int main() { int m; while (~scanf("%d", &m)) { printf("%d", m*m-m+1); for (int i=1; i<m; i++) printf("+%d", m*m-m+1+i*2); } return 0; }
9行就可以