| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 303183 | VROOM_VARUN | Carnival Tickets (IOI20_tickets) | C++14 | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
/*
ID: varunra2
LANG: C++
TASK: tickets
*/
#include<bits/stdc++.h>
using namespace std;
#include "tickets.h"
#ifdef DEBUG
#include "lib/debug.h"
#define debug(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#define debug_arr(...) \
cerr << "[" << #__VA_ARGS__ << "]:", debug_arr(__VA_ARGS__)
#pragma GCC diagnostic ignored "-Wsign-compare"
//#pragma GCC diagnostic ignored "-Wunused-parameter"
//#pragma GCC diagnostic ignored "-Wunused-variable"
#else
#define debug(...) 42
#endif
#define EPS 1e-9
#define IN(A, B, C) assert(B <= A && A <= C)
#define INF (int)1e9
#define MEM(a, b) memset(a, (b), sizeof(a))
#define MOD 1000000007
#define MP make_pair
#define PB push_back
#define all(cont) cont.begin(), cont.end()
#define rall(cont) cont.end(), cont.begin()
#define x first
#define y second
const double PI = acos(-1.0);
typedef long long ll;
typedef long double ld;
typedef pair<int, int> PII;
typedef map<int, int> MPII;
typedef multiset<int> MSETI;
typedef set<int> SETI;
typedef set<string> SETS;
typedef vector<int> VI;
typedef vector<PII> VII;
typedef vector<VI> VVI;
typedef vector<string> VS;
#define rep(i, a, b) for(int i = a; i < (b); ++i)
#define trav(a, x) for(auto& a : x)
#define sz(x) (int)(x).size()
typedef pair<int, int> pii;
typedef vector<int> vi;
#pragma GCC diagnostic ignored "-Wsign-compare"
// util functions
int n, m;
ll find_maximum(int k, VVI x) {
n = sz(x);
m = sz(x[0]);
VVI ret(n, VI(k, -1));
if(m == 1) {
ret = x;
sort(all(x));
ll sm1, sm2;
sm1 = 0;
sm2 = 0;
for(int i = 0; i < n/2; i++) {
sm1 += x[i][0];
}
for(int i = n/2; i < n; i++) {
sm2 += x[i][0];
}
trav(x, ret) x = {0};
allocate_tickets(ret);
return sm2 - sm1;
}
if(*max_element(all(*max_element(all(x)))) == 1) {
}
if(k == 1) {
// sum of n/2 largest elements
// minus sum of n/2 smallest elements
ll sm = 0;
priority_queue<pair<pair<ll, ll>, ll>> pq;
for(int i = 0; i < n; i++ ) {
ll mx, mn;
auto it = max_element(all(x[i]));
mn = *max_element(all(x[i]));
sm -= mn;
mx = *it;
pq.push(MP(MP(mx + mn, it - x[i].begin()), i));
}
for(int times = 0; times < n/2; times++) {
auto u = pq.top();
pq.pop();
sm += u.x.x;
x[u.y][u.x.y] = 0;
}
allocate_tickets(x);
return sm;
}
}
// int main() {
// #ifndef ONLINE_JUDGE
// freopen("tickets.in", "r", stdin);
// freopen("tickets.out", "w", stdout);
// #endif
// cin.sync_with_stdio(0); cin.tie(0);
// return 0;
// }