Submission #431651

#	Time	Username	Problem	Language	Result	Execution time	Memory
431651		MilosMilutinovic	Gondola (IOI14_gondola)	C++14	Compilation error	0 ms	0 KiB

gondola

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

int valid(int N, int A[]) {
    int j = -1;
    for (int i = 0; i < N; i++)
        if (A[i] >= 1 && A[i] <= N) {
            j = i;
            break;
        }

    set<int> vals;
        for (int i = 0; i < N; i++)
            vals.insert(A[i]);

    if (vals.size() != N)
        return 0;

    if (j == -1)
        return 1;

    int val = A[j];
    for (int i = 0; i < N; i++) {
        int id = (i + j) % N;

        if (A[id] >= 1 && A[id] <= N && A[id] != val)
            return 0;

        val++;
        if (val == N + 1)
            val = 1;
    }
    return 1;
}

int replacement(int N, int A[], int ans[]) {
    vector<int> B;
    for (int i = 0; i < N; i++)
        if (A[i] > N)
            B.push_back(i);

    int start_id = -1;
    for (int i = 0; i < N; i++)
        if (A[i] >= 1 && A[i] <= N) {
            start_id = i;
            break;
        }

    if (start_id == -1)
        start_id = min_element(A, A + N) - A;

    vector<int> start_val(N);
    for (int i = 0; i < N; i++) {
        int index = (start_id + i) % N;

        int val = A[start_id] + i;
        if (val > N)
            val -= N;

        start_val[index] = val;
    }

    sort(B.begin(), B.end(), [&](int i, int j){
        return A[i] < A[j];
    });

    int index = 0;

     for (int i : B) {
        ans[index++] = start_val[i];

        while (last < A[i])
            ans[index++] = last++;
    }

    return index;
}

int countReplacement(int N, int A[]) {
    return valid(N, A);
} 

Compilation message (stderr)

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:17:21: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   17 |     if (vals.size() != N)
      |         ~~~~~~~~~~~~^~~~
gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:73:16: error: 'last' was not declared in this scope
   73 |         while (last < A[i])
      |                ^~~~