牛客多校(2020第十场)E Game
题目链接:https://ac.nowcoder.com/acm/contest/5675/E
题解：求最大前缀平均值
1 #include<unordered_map> 2 #include<vector> 3 #include<iostream> 4 #include<cstring> 5 #include<algorithm> 6 #include<queue> 7 #include<cmath> 8 #include<cstring> 9 10 using namespace std; 11 #define ll long long 12 const ll N = 105 + 5; 13 14 inline ll read() { 15 ll x = 0, f = 1; 16 char ch = getchar(); 17 while(ch<'0'||ch>'9'){ 18 if(ch=='-') 19 f=-1; 20 ch=getchar(); 21 } 22 while(ch>='0'&&ch<='9'){ 23 x = x * 10 + ch - '0'; 24 ch = getchar(); 25 } 26 return x * f; 27 } 28 29 ll a[N]; 30 31 void solve(int n) { 32 int sum = 0, max_high = 0; 33 for (int i = 1; i <= n; i++) { 34 sum += a[i]; 35 max_high = max(max_high, (sum+i-1) / i); 36 } 37 cout << max_high << "\n"; 38 } 39 40 int main() { 41 int t =read(); 42 while (t--) { 43 int n =read(); 44 for (int i = 1; i <= n; i++) { 45 a[i] = read(); 46 } 47 48 solve(n); 49 } 50 return 0; 51 } 52 53 /* 54 100 55 8 56 2 5 1 4 4 6 3 2 57 6 58 1 2 7 8 1 1 59 8 60 6 6 1 2 7 8 1 1 61 8 62 4 4 1 2 7 8 1 1 63 8 64 3 3 1 2 7 8 1 1 65 */
