Submission

[P-SSS][SSSSS][SSSSSSSSSS]

Score: 0

User: Cmoss9

Problemset: ห้องสมุดเมือง 3M

Language: cpp

Time: 0.002 second

Submitted On: 2025-03-17 21:07:10

#include <bits/stdc++.h>
using namespace std;
int main () {
    ios_base::sync_with_stdio(false);cin.tie(NULL);
    int room;
    cin >> room;
    vector<vector<int>> arr(room, vector<int>(2));
    //vector<vector<int>> librarychar(room);
    vector<int> alllibrarychar;
    //int longest = 0;
    for (int i = 0;i<room;i++) {
        cin >> arr[i][0] >> arr[i][1];
        for (int j = arr[i][0];j<arr[i][1];j++) {
            //librarychar[i].push_back(j);
            alllibrarychar.push_back(j);
        }
        //if (longest < libraychar[i].size()) longest = libraychar[i].size();
    }
    // combined
    int size = alllibrarychar.size();
    if (size%2==0) cout << size/2;
    if (size%2==1) cout << size/2 -1;
}