Submission #1050165

#	Time	Username	Problem	Language	Result	Execution time	Memory
1050165		vjudge1	Art Exhibition (JOI18_art)	C++98	0 / 100	0 ms	344 KiB

art

#include <bits/stdc++.h>
#define f first
#define s second
using namespace std;

int main()
{
    int n;
    cin >> n;
    pair<long long, long long> q[n];
    for (int i = 0; i < n; i++) {
        cin >> q[i].f >> q[i].s;
    }
    sort(q, q + n);

    vector<pair<long long, long long>> a;
    long long s = 0;
    for (int i = 0; i < n; i++) {
        if (i > 0 && q[i].f == q[i - 1].f) {
            s += q[i].s;
        } else {
            if (i > 0) {
                a.push_back(make_pair(q[i - 1].f, s));
            }
            s = q[i].s;
        }
    }
    a.push_back(make_pair(q[n - 1].f, s));
    vector<long long> sum;
    long long l = 0;
    for (int i = 0; i < a.size(); i++) {
        l += a[i].s;
        sum.push_back(l);
    }
    long long m = 0;
    for (int i = 0; i < a.size(); i++) {
        long long r = 0;
        for (int j = i + 1; j < a.size(); j++) {
            if (i - 1 < 0) s = sum[j];
            else s = sum[j] - sum[i - 1];
            //cout << s << endl;
            r = s - (a[j].f - a[i].f);
            m = max(m, r);
        }
        
    }
    cout << m << endl;

    return 0;
}

Compilation message (stderr)

art.cpp: In function 'int main()':
art.cpp:31:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |     for (int i = 0; i < a.size(); i++) {
      |                     ~~^~~~~~~~~~
art.cpp:36:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |     for (int i = 0; i < a.size(); i++) {
      |                     ~~^~~~~~~~~~
art.cpp:38:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |         for (int j = i + 1; j < a.size(); j++) {
      |                             ~~^~~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 50