Submission #1047072

#	Time	Username	Problem	Language	Result	Execution time	Memory
1047072		Whisper	Lost Array (NOI19_lostarray)	C++17	11 / 100	5 ms	7052 KiB

lostarray

#include <bits/stdc++.h>

using namespace std;
using ll = long long;

#define int long long
#define FOR(i, a, b) for (int i = (a); i <= (b); i++)
#define FORD(i, a, b) for (int i = (b); i >= (a); i --)
#define REP(i, a) for (int i = 0; i < (a); ++i)
#define REPD(i, a) for (int i = (a) - 1; i >= 0; --i)

#define MASK(i) (1LL << (i))
#define BIT(x, i) (((x) >> (i)) & 1)


constexpr ll LINF = (1ll << 60);
constexpr int INF = (1ll << 30);
constexpr int Mod = 1e9 + 7;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

/*
    Phu Trong from Nguyen Tat Thanh High School for gifted student
*/

template <class X, class Y>
    bool minimize(X &x, const Y &y){
        X eps = 1e-9;
        if (x > y + eps) {x = y; return 1;}
        return 0;
    }

template <class X, class Y>
    bool maximize(X &x, const Y &y){
        X eps = 1e-9;
        if (x + eps < y) {x = y; return 1;}
        return 0;
    }
int N, M;
#define MAX             100005
vector<pair<int, int>> Q[MAX];

int A[MAX];

#define cs              1'000'000'000
int a[MAX], b[MAX], c[MAX];
void process(void){
    cin >> N >> M;
    for (int i = 1; i <= M; ++i){
        cin >> a[i] >> b[i] >> c[i];
        Q[a[i]].emplace_back(c[i], b[i]);
        Q[b[i]].emplace_back(c[i], a[i]);
    }
    for (int i = 1; i <= N; ++i) sort(Q[i].begin(), Q[i].end());
    for (int i = 1; i <= N; ++i){
        if (Q[i].empty()){
            A[i] = cs; continue;
        }
        while(Q[i].size()){
            if(A[Q[i].back().second]) Q[i].pop_back();
            else break;
        }
        A[i] = (Q[i].empty() ? cs : Q[i].back().first);
    }
    for (int i = 1; i <= N; ++i) cout << A[i] << " ";
}
signed main(){
    #define name "Whisper"
    cin.tie(nullptr) -> sync_with_stdio(false);
    //freopen(name".inp", "r", stdin);
    //freopen(name".out", "w", stdout);
    process();
    return (0 ^ 0);
}

• Subtask 1: 5 / 5
• Subtask 2: 6 / 6
• Subtask 3: 0 / 20
• Subtask 4: 0 / 21
• Subtask 5: 0 / 48