王彥 => YSITD: #include <stdio.h> int main(){ int N , R , A , B; scanf("%d",&N); scanf("%d",&R); A = 1; B = 1; R = N - R; while (N > 0) { A = A * N; N = N - 1; }; while (R > 0) { B = B * R; R = R - 1; }; printf("%d",A/B); return 0; }; #59bbed70d3e45b2f10efc0b8

王彥 says to YSITD

#include <stdio.h> int main(){ int N , R , A , B; scanf("%d",&N); scanf("%d",&R); A = 1; B = 1; R = N - R; while (N > 0) { A = A * N; N = N - 1; }; while (R > 0) { B = B * R; R = R - 1; }; printf("%d",A/B); return 0; };

at Fri, Sep 15, 2017 11:10 PM