Submission #201171

#	Time	Username	Problem	Language	Result	Execution time	Memory
201171		rzbt	Drvca (COCI19_drvca)	C++14	0 / 110	45 ms	2420 KiB

drvca

#include <bits/stdc++.h>
#define MAXN 100005
#define pb push_back
#define mp make_pair
#define all(x) x.begin(),x.end()
using namespace std;

int n;
int visine[MAXN];
vector<int> a,b;

bool provera(){
    if(b.empty()){
        b.pb(a.back());
        a.pop_back();
        return true;
    }
    for(int i=2;i<b.size();i++){
        if(b[i]-b[i-1]!=b[i-1]-b[i-2])return false;
    }
    return true;
}
void ispis(){
    printf("%d\n",a.size());
    for(auto x:a)printf("%d ",x);
    printf("\n%d\n",b.size());
    for(auto x:b)printf("%d ",x);
    exit(0);
}


int main()
{
    scanf("%d", &n);
    for(int i=0;i<n;i++)scanf("%d",visine+i);
    if(n==2){
        printf("1\n%d\n1\n%d\n",visine[1],visine[0]);
        return 0;
    }
    sort(visine,visine+n);
    a.pb(visine[0]);
    a.pb(visine[1]);
    for(int i=2;i<n;i++){

        if(visine[i]-a.back()==a.back()-a[a.size()-2])a.pb(visine[i]);
        else b.pb(visine[i]);
    }

    if(provera())ispis();

    a.clear();
    b.clear();
    /// /////////////////////
    a.pb(visine[0]);
    a.pb(visine[2]);
    b.pb(visine[1]);
    for(int i=3;i<n;i++){
        if(visine[i]-a.back()==a.back()-a[a.size()-2])a.pb(visine[i]);
        else b.pb(visine[i]);
    }
    if(provera())ispis();
    a.clear();
    b.clear();
    /// /////////////////////
    a.pb(visine[1]);
    a.pb(visine[2]);
    b.pb(visine[0]);
    for(int i=3;i<n;i++){
        if(visine[i]-a.back()==a.back()-a[a.size()-2])a.pb(visine[i]);
        else b.pb(visine[i]);
    }
    if(provera())ispis();
    a.clear();
    b.clear();
    printf("-1");
    return 0;
}

Compilation message (stderr)

drvca.cpp: In function 'bool provera()':
drvca.cpp:18:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=2;i<b.size();i++){
                 ~^~~~~~~~~
drvca.cpp: In function 'void ispis()':
drvca.cpp:24:27: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::vector<int>::size_type {aka long unsigned int}' [-Wformat=]
     printf("%d\n",a.size());
                   ~~~~~~~~^
drvca.cpp:26:29: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::vector<int>::size_type {aka long unsigned int}' [-Wformat=]
     printf("\n%d\n",b.size());
                     ~~~~~~~~^
drvca.cpp: In function 'int main()':
drvca.cpp:34:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
drvca.cpp:35:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(int i=0;i<n;i++)scanf("%d",visine+i);
                         ~~~~~^~~~~~~~~~~~~~~

• Subtask 1: 0 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 30
• Subtask 4: 0 / 30