Submission #1245018


Source Code Expand

#include "bits/stdc++.h"

#define REP(i,n) for(ll i=0;i<n;++i)
#define RREP(i,n) for(ll i=n-1;i>=0;--i)
#define FOR(i,m,n) for(ll i=m;i<n;++i)
#define RFOR(i,m,n) for(ll i=n-1;i>=m;--i)
#define ALL(v) (v).begin(),(v).end()
#define PB(a) push_back(a)
#define UNIQUE(v) v.erase(unique(ALL(v)),v.end());
#define DUMP(v) REP(i, (v).size()) { cout << v[i]; if (i != v.size() - 1)cout << " "; else cout << endl; }
#define INF 1000000001ll
#define MOD 1000000007ll
#define EPS 1e-9

const int dx[8] = { 1,1,0,-1,-1,-1,0,1 };
const int dy[8] = { 0,1,1,1,0,-1,-1,-1 };


using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<vi> vvi;
typedef vector<vl> vvl;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
ll max(ll a, int b) { return max(a, ll(b)); }
ll max(int a, ll b) { return max(ll(a), b); }
///(´・ω・`)(´・ω・`)(´・ω・`)(´・ω・`)(´・ω・`)(´・ω・`)///
int main() {
	cin.tie(0);
	ios::sync_with_stdio(false);
	while (1) {
		int n;
		cin >> n;
		if (!n)break;
		vi v(n);
		REP(i, n) {
			string s;
			cin >> s;
			if (s[0] != 'x')v[i] = stoi(s);
			else v[i] = 2 * INF;
		}
		int flag = 1;
		REP(i, n - 1) {
			if (flag) {
				if (v[i] == 2 * INF&&v[i + 1] == 2 * INF) {
					cout << "none" << endl;
					flag = 0;
				}
				else if (v[i] != 2 * INF&&v[i + 1] != 2 * INF) {
					if (i % 2 == 0 && v[i] >= v[i + 1]) {
						cout << "none" << endl;
						flag = 0;
					}
					else if (i % 2 == 1 && v[i] <= v[i + 1]) {
						cout << "none" << endl;
						flag = 0;
					}
				}
			}
		}
		if (flag) {
			int u = INF+1, l = -INF-1;
			REP(i, n) {
				if (v[i] == 2 * INF) {
					if (i % 2 == 0) {
						if (i != 0)u = min(u, v[i - 1] - 1);
						if (i != n - 1)u = min(u, v[i + 1] - 1);
					}
					else {
						l = max(l, v[i - 1] + 1);
						if (i != n - 1)l = max(l, v[i + 1] + 1);
					}
				}
			}
			if (u == l)cout << u << endl;
			else if (l < u)cout << "ambigous" << endl;
			else cout << "none" << endl;
		}
	}
	return 0;
}

Submission Info

Submission Time
Task A - Broken Audio Signal
User etonagisa
Language C++14 (GCC 5.4.1)
Score 0
Code Size 2092 Byte
Status WA
Exec Time 9 ms
Memory 256 KB

Judge Result

Set Name all
Score / Max Score 0 / 100
Status
WA × 1
Set Name Test Cases
all Merged
Case Name Status Exec Time Memory
Merged WA 9 ms 256 KB