Submission #166803

#TimeUsernameProblemLanguageResultExecution timeMemory
166803triGondola (IOI14_gondola)C++14
55 / 100
46 ms4600 KiB
#include <bits/stdc++.h>
#include "gondola.h"

using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pi;
typedef pair<ll, ll> pl;

typedef vector<int> vi;
typedef vector<ld> vd;
typedef vector<ll> vl;

#define pb push_back
#define f first
#define s second

namespace debug {
    const int DEBUG = true;

    template<class T1, class T2>
    void pr(const pair<T1, T2> &x);

    template<class T, size_t SZ>
    void pr(const array<T, SZ> &x);

    template<class T>
    void pr(const vector<T> &x);

    template<class T>
    void pr(const set<T> &x);

    template<class T1, class T2>
    void pr(const map<T1, T2> &x);

    template<class T>
    void pr(const T &x) { if (DEBUG) cout << x; }

    template<class T, class... Ts>
    void pr(const T &first, const Ts &... rest) { pr(first), pr(rest...); }

    template<class T1, class T2>
    void pr(const pair<T1, T2> &x) { pr("{", x.f, ", ", x.s, "}"); }

    template<class T>
    void prIn(const T &x) {
        pr("{");
        bool fst = 1;
        for (auto &a : x) {
            pr(fst ? "" : ", ", a), fst = 0;
        }
        pr("}");
    }

    template<class T, size_t SZ>
    void pr(const array<T, SZ> &x) { prIn(x); }

    template<class T>
    void pr(const vector<T> &x) { prIn(x); }

    template<class T>
    void pr(const set<T> &x) { prIn(x); }

    template<class T1, class T2>
    void pr(const map<T1, T2> &x) { prIn(x); }

    void ps() { pr("\n"), cout << flush; }

    template<class Arg, class... Args>
    void ps(const Arg &first, const Args &... rest) {
        pr(first, " ");
        ps(rest...);
    }
}
using namespace debug;

int valid(int N, int a[]) {
    set<int> seen;

    int off = -1;

    for (int i = 0; i < N; i++) {
        if (seen.count(a[i])) {
            return false;
        }
        seen.insert(a[i]);

        if (a[i] <= N) {
            int nOff = (N + i - (a[i] - 1)) % N;
            if (off == -1) {
                off = nOff;
            } else {
                if (off != nOff) {
                    return false;
                }
            }
        }
    }
    return true;
}

int replacement(int N, int a[], int rep[]) {

    int off = 0;
    for (int i = 0; i < N; i++) {
        if (a[i] <= N) {
            off = (N + i - (a[i] - 1)) % N;
        }
    }
//    ps(off);

    vi mod(a, a + N);

    for (int i = 0; i < N; i++) {
        if (mod[i] > N) {
            mod[i] = (i + 1 + N - off) % N;
            if (mod[i] == 0) {
                mod[i] = N;
            }
        }
    }

//    ps(mod);

    vector<pi> ord;

    for (int i = 0; i < N; i++) {
        if (a[i] > N) {
            ord.pb({a[i], i});
        }
    }

    sort(ord.begin(), ord.end());

    int nxt = N + 1;
    int L = 0;

    for (pi cur : ord) {
        while (nxt <= cur.f) {
            rep[L++] = mod[cur.s];
            mod[cur.s] = nxt++;
        }
    }

    return L;
}

int countReplacement(int n, int inputSeq[]) {
    return -1;
}

//int main() {
//    int ans[10];
//    int inp[] = {3, 1, 4};
//    int L = replacement(3, inp, ans);
//
//    for (int i = 0; i < L; i++) {
//        ps(ans[i]);
//    }
//}
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