Submission #303435

#	Time	Username	Problem	Language	Result	Execution time	Memory
303435		Vimmer	Carnival Tickets (IOI20_tickets)	C++14	0 / 100	1 ms	288 KiB

tickets

#include <bits/stdc++.h>
#include "tickets.h"
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>

#define N 1005
#define PB push_back
#define sz(x) int(x.size())
#define P 31
#define F first
#define M ll(1e9 + 7)
#define S second
#define all(x) x.begin(), x.end()
#define endl '\n'

//#pragma GCC optimize("unroll-loops")
//#pragma GCC optimize("-O3")
//#pragma GCC optimize("Ofast")
//#pragma GCC optimize("fast-math")
//#pragma GCC optimize("no-stack-protector")

using namespace std;
//using namespace __gnu_pbds;

typedef long long ll;

//typedef tree<int, null_type, less_equal <int>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;

ll mlt(ll a, ll b) {return (a * b) % M;}
ll sm(ll a, ll b) {return (a + b) % M;}

ll calc(vector <vector <int> > &x, ll md)
{
    ll sum = 0;

    for (int i = 0; i < sz(x); i++) sum += abs(md - x[i][0]);

    return sum;
}

ll find_maximum(int k, vector<vector<int> > x)
{
	int n = sz(x);

	int m = sz(x[0]);

    for (int i = 0; i < n; i++)
        x[i][0] = 0;

    allocate_tickets(x);

    ll l = 0, r = 1e9;

    while (l < r)
    {
        ll mdl = (l + r) / 2;

        ll mdr = mdl + 1;

        if (calc(x, mdl) < calc(x, mdr)) r = mdl;
          else l = mdr;
    }

    return calc(x, l);
}


//int main()
//{
////    freopen("help.in", "r", stdin); freopen("help.out", "w", stdout);
//
//    ios_base::sync_with_stdio(0); istream::sync_with_stdio(0); cin.tie(0); cout.tie(0);
//}

Compilation message (stderr)

tickets.cpp: In function 'll find_maximum(int, std::vector<std::vector<int> >)':
tickets.cpp:45:6: warning: unused variable 'm' [-Wunused-variable]
   45 |  int m = sz(x[0]);
      |      ^

• Subtask 1: 0 / 11
• Subtask 2: 0 / 16
• Subtask 3: 0 / 14
• Subtask 4: 0 / 14
• Subtask 5: 0 / 12
• Subtask 6: 0 / 23
• Subtask 7: 0 / 10