https://codeforces.com/contest/1105/problem/A

題解：數據較小暴力就行了?

/* *@Author: STZG *@Language: C++ */ #include <bits/stdc++.h> #include<iostream> #include<algorithm> #include<cstdlib> #include<cstring> #include<cstdio> #include<string> #include<vector> #include<bitset> #include<queue> #include<deque> #include<stack> #include<cmath> #include<list> #include<map> #include<set> //#define DEBUG #define RI register int using namespace std; typedef long long ll; //typedef __int128 lll; const int N=100000+10; const int MOD=1e9+7; const double PI = acos(-1.0); const double EXP = 1E-8; const int INF = 0x3f3f3f3f; int t,n,m,k,q; int ans,cnt,flag,temp; int a[N]; char str; int main() { #ifdef DEBUGfreopen("input.in", "r", stdin);//freopen("output.out", "w", stdout); #endifscanf("%d",&n);//scanf("%d",&t);//while(t--){}for(int i=1;i<=n;i++){scanf("%d",&a[i]);}sort(a+1,a+n+1);ans=INF;for(int i=a[1];i<=a[n];i++){cnt=0;for(int j=1;j<=n;j++){if(a[j]<i-1)cnt+=abs(i-1-a[j]);if(a[j]>i+1)cnt+=abs(i+1-a[j]);}if(ans>cnt){ans=cnt;flag=i;}}cout<<flag<<" "<<ans<<endl;//cout << "Hello world!" << endl;return 0; }

?

總結

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