Submission #432889

#	Time	Username	Problem	Language	Result	Execution time	Memory
432889		REALITYNB	Gondola (IOI14_gondola)	C++17	Compilation error	0 ms	0 KiB

gondola

#include <bits/stdc++.h>
#include "gondola.h"
using namespace std;
int valid(int n ,int* a){
    set<int> el ;
    for(int i=0;i<n;i++) el.insert(a[i]) ;
    if(el.size()!=n) return 0 ;
    bool flg= 0 ;
    for(int i=0;i<n;i++){
        if(a[i]>n) continue;
        for(int j=i;j<n+i;j++){
            if(a[j%n]>n) continue ;
            if(a[j%n]==((a[i]+j-i)<=n?a[i]+j-i:a[i]+j-i-n)) continue ;
            return 0;
        }
        break ;
    }
    return 1 ;
}
int replacementSeq(int n , int* a , int* ans){
	return 0 ; 
}
int countReplacement(int n,int* a){
	return 0 ; 
}

Compilation message (stderr)

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:7:17: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
    7 |     if(el.size()!=n) return 0 ;
      |        ~~~~~~~~~^~~
gondola.cpp:8:10: warning: unused variable 'flg' [-Wunused-variable]
    8 |     bool flg= 0 ;
      |          ^~~
/usr/bin/ld: /tmp/cc6ZDwwm.o: in function `main':
grader.cpp:(.text.startup+0x132): undefined reference to `replacement'
collect2: error: ld returned 1 exit status