Submission #338682

#	Time	Username	Problem	Language	Result	Execution time	Memory
338682		NicolaAbusaad2014	Gap (APIO16_gap)	C++14	Compilation error	0 ms	0 KiB

gap

/**
 * Prof.Nicola
**/
#include "gap.h"
#include <bits/stdc++.h>

using namespace std;
template<class T>void re(T&x){cin>>x;}
template<class T1,class T2> void re(pair<T1,T2>&x){re(x.first);re(x.second);}
template<class T>void re(vector<T>&x){for(long i=0;i<x.size();i++){re(x[i]);}}
template<class T>void re(deque<T>&x){for(long i=0;i<x.size();i++){re(x[i]);}}
template<class T1,class T2> pair<T1,T2> mp(T1&x,T2&z){return make_pair(x,z);}
long long n;
set<long long>s;
set<long long>::iterator a,b;
void solve(long long l,long long r)
{
    long long mx,mn;
    MinMax(l, r, &mn, &mx);
    if(mn==-1){
        return;
    }
    s.insert(mn);
    s.insert(mx);
    if((long long)s.size()==n){
        return;
    }
    if(mn+1>=mx){
        return;
    }
    if(mn+3>=mx){
        solve(mn+1,mx-1);
        return;
    }
    solve(mn+1,((mx+mn)/2));
    if(s.size()==n){
        return;
    }
    solve(((mx+mn)/2)+1,mx-1);
    return;
}
long long findGap(int T, int N)
{
    n=N;
    if(T==1){
    long long l=0,r=1e18,mn,mx;
    while(s.size()<N){
        MinMax(l,r,&mn,&mx);
        l=mn+1;
        r=mx-1;
        s.insert(mn);
        s.insert(mx);
    }
    a=s.begin();
    b=s.begin();
    b++;
    long long ans=0;
    for(long i=1;i<s.size();i++){
        ans=max(ans,(*b)-(*a));
        a++;
        b++;
    }
    }
    else{
        long long l=0,r=1e18,ans=0;
        solve(l,r);
        a=s.begin();
        b=s.begin();
        b++;
        long long ans=0;
        for(long i=1;i<s.size();i++){
            ans=max(ans,(*b)-(*a));
            a++;
            b++;
        }
    }
	return ans;
}

Compilation message (stderr)

gap.cpp: In function 'void solve(long long int, long long int)':
gap.cpp:36:16: warning: comparison of integer expressions of different signedness: 'std::set<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   36 |     if(s.size()==n){
      |        ~~~~~~~~^~~
gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:47:19: warning: comparison of integer expressions of different signedness: 'std::set<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   47 |     while(s.size()<N){
      |           ~~~~~~~~^~
gap.cpp:58:19: warning: comparison of integer expressions of different signedness: 'long int' and 'std::set<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |     for(long i=1;i<s.size();i++){
      |                  ~^~~~~~~~~
gap.cpp:70:19: error: redeclaration of 'long long int ans'
   70 |         long long ans=0;
      |                   ^~~
gap.cpp:65:30: note: 'long long int ans' previously declared here
   65 |         long long l=0,r=1e18,ans=0;
      |                              ^~~
gap.cpp:71:23: warning: comparison of integer expressions of different signedness: 'long int' and 'std::set<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   71 |         for(long i=1;i<s.size();i++){
      |                      ~^~~~~~~~~
gap.cpp:77:9: error: 'ans' was not declared in this scope; did you mean 'abs'?
   77 |  return ans;
      |         ^~~
      |         abs