和为n连续正整数序列

/** Copyright (c) 2011 alexingcool. All Rights Reserved.*/#include <iostream>#include <iterator>#include <algorithm>using namespace std;void print(int i, int j) {for(int k = i; k < j; k++)cout << k << " ";cout << endl;}void print(int num) {if(num < 3)return;int sum = 0;for(int i = 1, j = 1; i <= num / 2 + 2;) {if(sum < num) {sum += i;i++;}if(sum == num) {print(j, i);sum -= j;j++;}if(sum > num) {sum -= j;j++;}}}void main() {print(3);}