Submission #897127

#	Time	Username	Problem	Language	Result	Execution time	Memory
897127		raul2008487	Gap (APIO16_gap)	C++17	12.65 / 100	37 ms	4212 KiB

gap

#include<bits/stdc++.h>
#include "gap.h"
#define ll long long
#define pll pair<ll,ll>
#define vl vector<ll>
#define pb push_back
#define in insert
#define all(v) v.begin(), v.end()
#define fi first
#define se second
#define fast ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
using namespace std;
long long findGap(int T, int N)
{
    ll l, r, i, j, lo = 1, hi = 1000000000000000000, ans = 0, n = N;
    MinMax(lo, hi, &l, &r);
    if( T == 1 ){
        vl v;
        v.pb(l);
        v.pb(r);
        while(l != r && v.size() < n){
            lo = l + 1, hi = r - 1;
            MinMax(lo, hi, &l, &r);
            v.pb(l);
            v.pb(r);
        }
        sort(all(v));
        for(i = 1; i<n; i++){
            ans = max(ans, (v[i] - v[i-1]));
        }
        return ans;
    }
    ll a, b, d1, d2, pw = 1;
    while(l != r){
        a = b = -1;
        while(a == -1){MinMax(l + 1, l + 1 + pw, &a, &b); pw <<= 1;}
        ans = max(ans, (a - l));
        pw = ans;
        l = b;
    }
    return ans;

}

Compilation message (stderr)

gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:21:34: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   21 |         while(l != r && v.size() < n){
      |                         ~~~~~~~~~^~~
gap.cpp:15:17: warning: unused variable 'j' [-Wunused-variable]
   15 |     ll l, r, i, j, lo = 1, hi = 1000000000000000000, ans = 0, n = N;
      |                 ^
gap.cpp:33:14: warning: unused variable 'd1' [-Wunused-variable]
   33 |     ll a, b, d1, d2, pw = 1;
      |              ^~
gap.cpp:33:18: warning: unused variable 'd2' [-Wunused-variable]
   33 |     ll a, b, d1, d2, pw = 1;
      |                  ^~

• Subtask 1: 0 / 30
• Subtask 2: 12.6460549623 / 70