Submission #199057

#	Time	Username	Problem	Language	Result	Execution time	Memory
199057		smjleo	Preokret (COCI19_preokret)	C++14	50 / 50	6 ms	376 KiB

preokret

#pragma region cp-helper
#include <bits/stdc++.h>
using namespace std;
#define AC ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
#define ll long long
#define ull unsigned long long
#define ii pair<int, int>
#define lll pair<ll, ll>
#define vi vector<int>
#define vvi vector<vi>
#define vl vector<ll>
#define vll vector<lll>
#define vvl vector<vl>
#define vii vector<ii>
#define all(a) a.begin(), a.end()
#define qsort(a) sort(all(a))
#define qsortd(a) sort(all(a), greater<>())
#define qsortf(a, f) sort(all(a), f)
#define pb(n) push_back(n)
#define eb(n) emplace_back(n)
#define pp(a, b) emplace_back(a, b)
#define umap unordered_map
#define uset unordered_set
#define nl '\n'
#define fileio(in, out) freopen(in, "r", stdin); freopen(out, "w", stdout)
#define qmod %mod
#define pls int
#define give main()
const int mod = 1000000007;
#pragma endregion
const int N = 300005;

int n, a, totala, totalb, ties=1, large, thres;
vii v;

pls give {
    AC;
    cin >> n;
    while (n--) {
        cin >> a;
        if (a == 1) totala++;
        else totalb++;
        if (totala == totalb) ties++;
        if (v.empty() or v.back().first != a) v.push_back({a, 1});
        else v.back().second++;
    }
    totala = totalb = 0;
    for (int i=0; i<v.size(); i++) {
        thres = (v[i].first == 1 ? totalb - totala : totala - totalb);
        if (thres>0 and thres<v[i].second) {
            large = max(large, v[i].second);
        }
        (v[i].first == 1 ? totala : totalb) += v[i].second;
    }
    cout << totala << ' ' << totalb << nl;
    cout << ties << nl;
    cout << large << nl;
}

Compilation message (stderr)

preokret.cpp:1:0: warning: ignoring #pragma region cp [-Wunknown-pragmas]
 #pragma region cp-helper
 
preokret.cpp:30:0: warning: ignoring #pragma endregion  [-Wunknown-pragmas]
 #pragma endregion
 
preokret.cpp: In function 'int main()':
preokret.cpp:48:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i=0; i<v.size(); i++) {
                   ~^~~~~~~~~

• Subtask 1: 50 / 50