Submission #58606

#	Time	Username	Problem	Language	Result	Execution time	Memory
58606		RezwanArefin01	Gondola (IOI14_gondola)	C++17	55 / 100	82 ms	4916 KiB

gondola

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

int valid(int n, int a[]) {
    int X, idx = -1;
    for(int i = 0; i < n; i++) {
        if(a[i] >= 1 && a[i] <= n) {
            X = a[i], idx = i; 
        }
    }
    set<int> st(a, a + n); 
    if(st.size() != n) return 0; 
    if(idx == -1) return 1; 
    for(int i = 0; i < n; i++) {
        if(a[i] >= 1 && a[i] <= n) {
            if((X + i - idx + n) % n != a[i] % n) 
                return 0;
        }
    } return 1; 
}

//----------------------

int replacement(int n, int a[], int res[]) {
    int l = 0, idx = -1, X; 
    for(int i = 0; i < n; i++) {
        if(1 <= a[i] && a[i] <= n) 
            idx = i, X = a[i]; 
    }
    int b[n];
    if(idx == -1) {
        for(int i = 0; i < n; i++) b[i] = i + 1; 
    } else { 
        for(int i = 0; i < n; i++) { 
            b[i] = (X + i - idx + n) % n; 
            if(b[i] == 0) b[i] = n;
        }
    } 
    vector<pair<int, int> > v; 
    for(int i = 0; i < n; i++) {
        if(a[i] > n) {
            v.emplace_back(a[i], b[i]); 
        }
    }
    sort(v.begin(), v.end()); 
    for(int i = 0; i < v.size(); i++) {
        while(l + n <  v[i].first) { 
            res[l++] = v[i].second; 
            v[i].second = l + n; 
        }
    } return l; 
}

//----------------------

int countReplacement(int n, int inputSeq[]) {
    
}

Compilation message (stderr)

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:13:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if(st.size() != n) return 0; 
        ~~~~~~~~~~^~~~
gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:47:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0; i < v.size(); i++) {
                    ~~^~~~~~~~~~
gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:59:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 10 / 10
• Subtask 4: 5 / 5
• Subtask 5: 10 / 10
• Subtask 6: 20 / 20
• Subtask 7: 0 / 5
• Subtask 8: 0 / 15
• Subtask 9: 0 / 15
• Subtask 10: 0 / 10