Submission #1001916

#	Time	Username	Problem	Language	Result	Execution time	Memory
1001916		codexistent	Gondola (IOI14_gondola)	C++14	25 / 100	10 ms	1224 KiB

gondola

#include <bits/stdc++.h>
#include <gondola.h>
using namespace std;
#define FOR(i, a, b) for(int i = a; i <= b; i++)
 
int diff(int n, int a, int b){
    if(b >= a) return b - a;
    else return (n - a) + b;
}
 
int valid(int n, int inputSeq[]){
    pair<int, int> prev = make_pair(-1, 0);
    set<int> s;
    FOR(i, 0, n - 1){
        if(inputSeq[i] <= n){
            if(prev.first == -1){
                prev = make_pair(i, inputSeq[i]);
            }else{
                if((((prev.second + diff(n, prev.first, i)) % n) == 0 ? n : ((prev.second + diff(n, prev.first, i)) % n)) != inputSeq[i]) return 0;
                prev = make_pair(i, inputSeq[i]);
            }
        }else{
            if(s.find(inputSeq[i]) != s.end()) return 0;
            s.insert(inputSeq[i]);
        }
    }
 
    return 1;
}
 
int replacement(int n, int gondolaSeq[], int replacementSeq[]){
    int idx = -1, mx = -1;
    vector<pair<int, int>> v;
    FOR(i, 0, n - 1){
        if(gondolaSeq[i] <= n){
            idx = gondolaSeq[i] - i;
            if(idx <= 0) idx += n;
        }else{
            v.push_back(make_pair(gondolaSeq[i], i));
        }
        mx = max(mx, gondolaSeq[i]);
    }
    sort(v.begin(), v.end());
 
    if(idx == -1) idx = 1;
    FOR(i, 0, v.size() - 1) replacementSeq[i] = idx + v[i].second;
    FOR(i, v.size(), mx - n) replacementSeq[i] = replacementSeq[i - 1];
    return mx - n;
}
 
int countReplacement(int n, int inputSeq[]){
    return 1;
}

Compilation message (stderr)

gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:4:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    4 | #define FOR(i, a, b) for(int i = a; i <= b; i++)
......
   46 |     FOR(i, 0, v.size() - 1) replacementSeq[i] = idx + v[i].second;
      |         ~~~~~~~~~~~~~~~~~~             
gondola.cpp:46:5: note: in expansion of macro 'FOR'
   46 |     FOR(i, 0, v.size() - 1) replacementSeq[i] = idx + v[i].second;
      |     ^~~

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