题目链接:HUD2058 The sum problem
#include <stdio.h> int main() { int m,n; int len,a; while(scanf("%d%d",&n,&m)!=EOF&&(m||n)) { len=sqrt(2.0*m); while(len>0) { a=m/len+(1-len)/2; if((a+a+(len-1))*len/2==m) printf("[%d,%d]\n",a,a+len-1); len--; } printf("\n"); } return 0; }