Submission #242506

#	Time	Username	Problem	Language	Result	Execution time	Memory
242506		WhaleVomit	Gap (APIO16_gap)	C++14	Compilation error	0 ms	0 KiB

gap

#include <bits/stdc++.h>
#include "gap.h"
using namespace std;

#define f first
#define s second
#define pb push_back
#define mp make_pair
#define all(v) v.begin(), v.end()
#define sz(v) (int)v.size()

#define MOO(i, a, b) for(int i=a; i<b; i++)
#define M00(i, a) for(int i=0; i<a; i++)
#define MOOd(i,a,b) for(int i = (b)-1; i >= a; i--)
#define M00d(i,a) for(int i = (a)-1; i>=0; i--)

#define FAST ios::sync_with_stdio(0); cin.tie(0);
#define finish(x) return cout << x << '\n', 0;
#define dbg(x) cerr << ">>> " << #x << " = " << x << "\n";
#define _ << " _ " <<

typedef long long ll;
typedef long double ld;
typedef vector<int> vi;
typedef pair<int,int> pi;
typedef pair<ld,ld> pd;
typedef complex<ld> cd;

/*vector<ll> vals;
ll m1 = 0;
ll m2 = 0;

void MinMax(ll s, ll t, ll& mn, ll& mx) {
    m1++;
    mn = (1e18)+1; mx = -1;
    for(ll x: vals) {
        if(s <= x && x <= t) {
            mn = min(mn, x);
            mx = max(mx, x);
            m2++;
        }
    }
    if(mx == -1) {
        mn = -1;
    }
}*/

pair<ll,ll> getMinMax(ll s, ll t) {
    ll mn, mx;
    MinMax(s, t, mn, mx);
    return mp(mn, mx);
}

ll findGap(int t, int n) {
    if(t == 1) {
        vector<ll> nums;
        ll lo = 0;
        ll hi = 1e18;
        int cnt = 0;
        while(cnt < n) {
            pair<ll,ll> p = getMinMax(lo, hi);
            if(p.f == p.s) cnt++;
            else cnt += 2;
            nums.pb(p.f);
            nums.pb(p.s);
            lo = p.f+1;
            hi = p.s-1;
        }
        sort(all(nums));
        ll res = 0;
        M00(i, n-1) {
            res = max(res, nums[i+1] - nums[i]);
        }
        return res;
    } else {
        pair<ll,ll> p = getMinMax(0, 1e18);
        ll small = p.f;
        ll big = p.s;
        ll cnt = big-small;
        if(cnt < n) return 1;
        ll blockcnt = n;
        ll a = cnt/n;
        ll b = a+1;
        ll bcnt = cnt - a*n;
        ll acnt = blockcnt - bcnt;

        vector<pair<ll,ll>> blocks(blockcnt);
        ll cur = small+1;
        int numAs = 0;
        M00(i, blockcnt) {
            if(numAs < acnt) {
                blocks[i] = mp(cur, cur+a-1);
                cur += a;
                numAs++;
            } else {
                blocks[i] = mp(cur, cur+b-1);
                cur += b;
            }
        }
        vector<pair<ll,ll>> answers(blockcnt);
        M00(i, blockcnt) answers[i] = getMinMax(blocks[i].f, blocks[i].s);
        ll res = 0;
        ll last = small;
        M00(i, blockcnt) {
            if(answers[i].f != -1) {
                res = max(res, answers[i].f - last);
                last = answers[i].s;
            }
        }
        return res;
    }
}

/*bool test(vector<ll> v) {
    vals = v;
    ll ans = 0;
    M00(i, sz(v)-1) {
        ans = max(ans, v[i+1]-v[i]);
    }
    m1 = 0;
    ll ans1 = findGap(1, sz(v));
    if(2*m1 > sz(v)+1 || ans1 != ans) return 0;
    m2 = 0;
    ll ans2 = findGap(2, sz(v));
    if(m2 > 3*sz(v) || ans2 != ans) return 0;
    return 1;
}

int main() { FAST
    vector<ll> v;
    v.pb(2); v.pb(3); v.pb(6); v.pb(8);
    if(test(v)) cout << "OK\n";
    else cout << "BAD\n";
    
    v.clear();
    v.pb(0); v.pb(1);
    if(test(v)) cout << "OK\n";
    else cout << "BAD\n";

    v.clear();
    v.pb(1); v.pb(3); v.pb(7); v.pb(9); v.pb(11);
    if(test(v)) cout << "OK\n";
    else cout << "BAD\n";
}
*/

Compilation message (stderr)

gap.cpp: In function 'std::pair<long long int, long long int> getMinMax(ll, ll)':
gap.cpp:50:24: error: invalid conversion from 'll {aka long long int}' to 'long long int*' [-fpermissive]
     MinMax(s, t, mn, mx);
                        ^
In file included from gap.cpp:2:0:
gap.h:1:6: note:   initializing argument 3 of 'void MinMax(long long int, long long int, long long int*, long long int*)'
 void MinMax(long long, long long, long long*, long long*);
      ^~~~~~
gap.cpp:50:24: error: invalid conversion from 'll {aka long long int}' to 'long long int*' [-fpermissive]
     MinMax(s, t, mn, mx);
                        ^
In file included from gap.cpp:2:0:
gap.h:1:6: note:   initializing argument 4 of 'void MinMax(long long int, long long int, long long int*, long long int*)'
 void MinMax(long long, long long, long long*, long long*);
      ^~~~~~