Submission #1838444

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;

#define rep(i,n) for(int (i)=0;(i)<(int)(n);(i)++)
#define rept(i,n) for(int (i)=0;(i)<=(int)(n);(i)++)
#define reps(i,s,n) for(int (i)=(s);(i)<(int)(n);(i)++)
#define repst(i,s,n) for(int (i)=(s);(i)<=(int)(n);(i)++)
#define repr(i,n) for(int (i)=(n);(i)>=0;(i)--)
#define each(itr,v) for(auto (itr):(v))
#define all(c) (c).begin(),(c).end()
#define pb push_back
#define mp(x,y) make_pair((x),(y))
#define fi first
#define se second
#define chmin(x,y) x=min(x,y)
#define chmax(x,y) x=max(x,y)
#define ln "\n"
#define show(x) cout << #x << " = " << x ln
#define dbg(x) cout<<#x"="<<x ln

typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<vector<int>> mat;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;

const int inf = (int)1e9;
const ll linf = (ll)1e18;
const int mod = (int)(1e9+7);
const int dx[] = {0, 1, 0, -1};
const int dy[] = {1, 0, -1, 0};
const int ddx[] = {0, 1, 1, 1, 0, -1, -1, -1};
const int ddy[] = {1, 1, 0, -1, -1, -1, 0, 1};

struct oreno_initializer {
	oreno_initializer() {
		cin.tie(0);
		ios::sync_with_stdio(0);
	}
} oreno_initializer;

// ⊂ニニニニニニニニニニニニニ( ^ω^)ニニニニニニニニニニニニニ⊃

int n, a[50];

int main() {
	cin >> n;
	rep(i,n) cin >> a[i];
	
	int ans = -inf;
	rep(s,n) {
		int chok = 0, aoki = -inf;
		rep(t,n) {
			if (s==t) continue;
			int chokt = 0, aokit = 0;
			int from = min(s,t);
			int to = max(s,t);
			repst(i,from, to) {
				if ((i-from+1)%2==1) chokt += a[i];
				else aokit += a[i];
			}
			if (aoki<aokit) {
				aoki = aokit;
				chok = chokt;
			}
		}
		chmax(ans, chok);
	}
	cout << ans << ln;
}

Submission Info

Judge Result