Submission #98890

#	Time	Username	Problem	Language	Result	Execution time	Memory
98890		bash	Exhibition (JOI19_ho_t2)	C++17	100 / 100	64 ms	4580 KiB

joi2019_ho_t2

/**
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*/
#include <cstring>
#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <queue>
#include <cmath>
#include <cstdlib>
#include <ctime>
#include <cassert>

#define F first
#define S second
#define endl '\n'
#define deb(x) cout<<#x<<' '<<x<<endl;
#define pb push_back

const long long MAXN = 1e6 + 1;
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;


long long readInt() {
    bool minus1 = false;
    long long result = 0;
    char ch;
    ch = getchar();
    while (true) {
        if (ch == '-') break;
        if (ch >= '0' && ch <= '9') break;
        ch = getchar();
    }
    if (ch == '-') minus1 = true; else result = ch-'0';
    while (true) {
        ch = getchar();
        if (ch < '0' || ch > '9') break;
        result = result*10 + (ch - '0');
    }
    if (minus1)
        return -result;
    else
        return result;
}

#define int __int64_t

int s[MAXN];
int v[MAXN];
int c[MAXN];

main() {
	#ifdef IZI_KATKA
	assert(freopen("input", "r", stdin));
    assert(freopen("output", "w", stdout));
    #endif
    int n = readInt(), m = readInt();
    vector <pair <int, int> > vec;
    for (int i = 1; i <= n; i++) {
        s[i] = readInt(), v[i] = readInt();
        vec.pb({v[i], s[i]});
    }
    sort(vec.begin(), vec.end());
    for (int i = 0; i < m; i++) {
        c[i] = readInt();
    }
    sort(c, c + m);
    int ans = 0;
    for (int i = n - 1; i >= 0 && ans < m; i--) {
        if (c[m - ans - 1] >= vec[i].S) {
            ans ++;
        }
    }
    cout << ans;
    return 0;
}

Compilation message (stderr)

joi2019_ho_t3.cpp:67:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main() {
      ^

• Subtask 1: 10 / 10
• Subtask 2: 40 / 40
• Subtask 3: 50 / 50