【CSP试题回顾】202109-1-数组推导（优化）

CSP-202109-1-数组推导

解题代码

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;long long n, sumMax,sumMin;int main() {cin >> n;vector<long long>arr(n);for (size_t i = 0; i < n; i++){cin >> arr[i];}for (auto& it : arr){sumMax += it;}cout << sumMax << endl;auto last = unique(arr.begin(), arr.end());arr.erase(last, arr.end());for (auto& it : arr){sumMin += it;}cout << sumMin;return 0;
}