Submission #769848

#	Time	Username	Problem	Language	Result	Execution time	Memory
769848		anha3k25cvp	Segway (COI19_segway)	C++14	100 / 100	467 ms	2024 KiB

segway

#include <bits/stdc++.h>
#define ll long long
#define ull unsigned long long
#define dl double
#define st first
#define nd second
#define II pair <int, int>

using namespace std;

const int N = 5 + 1e5;
const int inf = 7 + 1e9;

vector <int> vis, ans, cnt;
vector <vector <int>> a;

int main() {
#define TASKNAME ""
    ios_base :: sync_with_stdio (0);
    cin.tie (0);
    if ( fopen( TASKNAME".inp", "r" ) ) {
        freopen (TASKNAME".inp", "r", stdin);
        freopen (TASKNAME".out", "w", stdout);
    }
    int n;
    cin >> n;
    a.assign(n + 1, vector <int> (3, 0));
    for (int i = 1; i <= n; i ++)
        for (int j = 0; j < 3; j ++)
            cin >> a[i][j];
    int m;
    cin >> m;
    vis.assign(300, 0);
    while (m --) {
        int x;
        cin >> x;
        vis[x] = 1;
    }
    ans.assign(n + 1, 0);
    cnt.assign(n + 1, 0);
    for (int pos = 0; pos < 300; pos ++) {
        vector <int> c;
        for (int i = 1; i <= n; i ++)
            c.push_back(ans[i]);
        sort(c.begin(), c.end());
        for (int i = 1; i <= n; i ++) {
            if (vis[pos]) {
                int val = lower_bound(c.begin(), c.end(), ans[i]) - c.begin();
                if (!cnt[i])
                    cnt[i] = val % 20;
            }
            if (cnt[i]) {
                ans[i] ++;
                cnt[i] --;
            }
            else
                ans[i] += a[i][pos / 100];
        }
    }
    for (int i = 1; i <= n; i ++)
        cout << ans[i] << '\n';
    return 0;
}

Compilation message (stderr)

segway.cpp: In function 'int main()':
segway.cpp:22:17: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |         freopen (TASKNAME".inp", "r", stdin);
      |         ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
segway.cpp:23:17: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |         freopen (TASKNAME".out", "w", stdout);
      |         ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 15 / 15
• Subtask 2: 40 / 40
• Subtask 3: 45 / 45