Submission #352818

#	Time	Username	Problem	Language	Result	Execution time	Memory
352818		beksultan04	Carnival Tickets (IOI20_tickets)	C++14	14 / 100	696 ms	56684 KiB

tickets

#include "tickets.h"
#ifndef EVAL
#include "grader.cpp"
#endif // EVAL
#include <bits/stdc++.h>
using namespace std;
#define lol long long
#define pii pair<int,int>
#define OK puts("OK");
#define NO puts("NO");
#define YES puts("YES");
#define fr first
#define sc second
#define ret return
#define scanl(a) scanf("%lld",&a);
#define scanll(a,b) scanf("%lld %lld",&a, &b);
#define scanlll(a,b,c) scanf("%lld %lld %lld",&a,&b,&c);
#define scan1(a) scanf("%d",&a);
#define scan2(a,b) scanf("%d %d",&a, &b);
#define scan3(a,b,c) scanf("%d %d %d",&a,&b,&c);
#define all(s) s.begin(),s.end()
#define allr(s) s.rbegin(),s.rend()
#define pb push_back
#define sz(v) (int)v.size()
#define endi puts("");
#define eps 1e-12
int pos[100001][2];
lol find_maximum(int k, vector<vector<int>> x) {
	int n = x.size();
	lol sum=0,ans=0;
	int m = x[0].size(),i,j;
	vector<vector<int>> answer;
	vector <lol> v;
	answer.resize(n);
	vector <pii> s;
	for (i = 0; i < n; i++){
        pos[i][0] = 0;
        pos[i][1] = -1;
        int a = 0;
        for (j=0;j<m;++j){
            a += x[i][j];
            if (pos[i][1] == -1 && x[i][j])
                pos[i][1] = j;

            answer[i].pb(-1);
        }
        s.push_back({a,i});
	}
	sort(all(s));
	for (i=0;i<k;++i){
        int c = 0,a=0,b=0;
        for (pii &y: s){
            c++;
            if (c*2 > n && answer[y.sc][pos[y.sc][1]] == -1 && y.fr > 0){
                a++;
                answer[y.sc][pos[y.sc][1]++] = i;
                y.fr--;
            }
            else if (answer[y.sc][pos[y.sc][0]] == -1){
                answer[y.sc][pos[y.sc][0]++] = i;
                b++;
            }
            else {
                a++;
                answer[y.sc][pos[y.sc][1]++] = i;
                y.fr--;
            }
        }
      //  cout <<min(a,b)<<" ";
        ans+=min(a,b);
        sort(all(s));
	}
	allocate_tickets(answer);
	ret ans;
}
/*
4 4 4
0 0 0 1
0 1 1 1
0 0 1 1
1 1 1 1

*/

Compilation message (stderr)

tickets.cpp: In function 'long long int find_maximum(int, std::vector<std::vector<int> >)':
tickets.cpp:30:6: warning: unused variable 'sum' [-Wunused-variable]
   30 |  lol sum=0,ans=0;
      |      ^~~

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