查找并刪除forward_list中的奇數元素

Practice 9.27

#include <iostream> #include <string> #include <vector> #include <algorithm> #include <list> #include <iterator> #include <cmath> #include <deque> #include <cstring> #include <forward_list> using namespace std;void find_and_delete(forward_list<int> & forlst) {auto pre = forlst.before_begin();auto cur = forlst.begin();while(cur != forlst.end()) {if((*cur) & 1) {cur = forlst.erase_after(pre);}else {pre = cur;cur++;}} } void print(forward_list<int> forlst) {for(auto i : forlst) {cout << i << " ";}cout << endl; } int main() {forward_list<int> forlst = {0, 1, 2, 3, 4, 5, 6, 7, 8}; find_and_delete(forlst);cout << "The remain forward_list is: " << endl; print(forlst);return 0; }

Output

The remain forward_list is: 0 2 4 6 8

When all else is lost the future still remains.

總結

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