Submission #560885

#	Time	Username	Problem	Language	Result	Execution time	Memory
560885		Joshi503	Teams (IOI15_teams)	C++14	0 / 100	4080 ms	9396 KiB

teams

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

using ll = long long;
using db = long double;
using str = string;
using pi = pair<int, int>;
using pl = pair<ll, ll>;
using pd = pair<db, db>;
#define f first
#define s second

#define tcT template<class T
#define tcTU tcT, class U
tcT> using V = vector<T>;
tcT, size_t SZ > using AR = array<T, SZ>;
using vi = V<int>;
using vb = V<bool>;
using vl = V<ll>;
using vd = V<db>;
using vs = V<str>;
using vpi = V<pi>;
using vpl = V<pl>;

#define sz(x) int((x).size())
#define bg(x) begin(x)
#define all(x) bg(x), end(x)
#define rall(x) x.rbegin(), x.rend() 
#define sor(x) sort(all(x)) 
#define pb push_back

#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define F0R(i,a) FOR(i,0,a)
#define ROF(i,a,b) for (int i = ((b)-1); i >= (a); --i)
#define R0F(i,a) ROF(i,0,a)
#define rep(a) F0R(_,a)
#define each(a,x) for (auto& a: x)

const ll MOD = 1e9 + 7;
const ll MX = 1e9;
const ll INF = 1e18;
const db PI = acos((db)-1);
const int ddef[4]{ 1,0,-1,0 }, dataq[4]{ 0,1,0,-1 };
mt19937 rng((uint32_t)chrono::steady_clock::now().time_since_epoch().count());
template<class T> using pqg = priority_queue<T, vector<T>, greater<T>>;

void setIO(string name = "") {
    ios_base::sync_with_stdio(0); cin.tie(0);
    if (sz(name)) {
        freopen((name + ".in").c_str(), "r", stdin);
        freopen((name + ".out").c_str(), "w", stdout);
    }
}

void _print(char i) { cerr << i; }
void _print(string i) { cerr << i; }
void _print(float i) { cerr << i; }
void _print(int i) { cerr << i; }
void _print(double i) { cerr << i; }
void _print() { cerr << "\n"; };
template<typename x, typename y> void _print(pair<x, y>& t) { cerr << "{";_print(t.first);cerr << ", ";_print(t.second);cerr << "},"; }
template<typename x> void _print(x& t) { cerr << "{"; for (int i = 0;i < (int)t.size();i++) { _print(t[i]); if (i < (int)t.size() - 1) cerr << ", "; } cerr << "}"; }
template<typename x, typename... y> void _print(x a, y... b) { _print(a);if (sizeof...(b)) cerr << ", ";_print(b...); }
#define dbg(x...) cerr<<"["<<#x<<"] = [";_print(x);cerr<<"]\n";

int n;
const int MXN = 500001; 

vector<pi> alfa(MXN);

bool cmp(const pi& x, const pi& y){
    if(x.f == y.f){
        return x.s > y.s;
    }
    return x.f > y.f;
}

void init(int N, int A[], int B[]) {
    n = N;
    F0R(i, n){
        alfa[i].f = A[i];
    }
    F0R(i, n){
        alfa[i].s = B[i];
    }
    sort(alfa.begin(), alfa.begin() + n, cmp);  

    // F0R(i, n){
    //     cout << alfa[i].f << " ";
    // }
    // cout << "\n";
    // F0R(i, n){
    //     cout << alfa[i].s << " ";
    // }
    // cout << "\n";
}

int can(int M, int K[]) {

    sort(K, K + M);
    F0R(i, M / 2){
        swap(K[i], K[M - i - 1]);
    }
    int idx = 0;
    F0R(i, M){
        int cnt = 0;
        while(idx < n){
            while(idx < n && (K[i] < alfa[idx].f || K[i] > alfa[idx].s)){
                idx++;
            }
            while(idx < n && cnt < K[i] && K[i] >= alfa[idx].f && K[i] <= alfa[idx].s){
                idx++;
                cnt++;
            }
            if(cnt != K[i]) return 0;
            break;
        }
    }

    return 1;
}

Compilation message (stderr)

teams.cpp: In function 'void setIO(std::string)':
teams.cpp:51:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   51 |         freopen((name + ".in").c_str(), "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
teams.cpp:52:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   52 |         freopen((name + ".out").c_str(), "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 21
• Subtask 2: 0 / 13
• Subtask 3: 0 / 43
• Subtask 4: 0 / 23