摘要：A void solve() { ll n, sum = 0; cin >> n; for (int i = 1; i <= n; i++) { ll x; cin >> x; sum += abs(x); } cout << sum << endl; } B 分类讨论 void solve() { 阅读全文

摘要：A map<int, string> mp; void solve() { int n; cin >> n; cout << mp[n] << endl; } void init() { string ans(3, 'a'); for (int i = 1; i <= 26; i++) { ans[ 阅读全文

摘要：A #include <bits/stdc++.h> #define endl '\n' #define x first #define y second using namespace std; typedef long long ll; typedef pair<int, int> pii; t 阅读全文