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Submission #248053

# Submission time Handle Problem Language Result Execution time Memory
248053 2020-07-12T07:45:41 Z kartel Sirni (COCI17_sirni) C++14
42 / 140
 82 ms 6808 KB 
#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
#define in(x) freopen(x, "r", stdin)
#define out(x) freopen(x, "w", stdout)
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("-O3")
#define F first
#define S second
#define pb push_back
#define N +10000500
#define M ll(1e9 + 7)
#define sz(x) (int)x.size()
#define re return
#define oo ll(1e9)
#define el '\n'
//#define el endl
#define pii pair <int, int>
#define err ld(1e-9)
#define last(x) x.back()
#define all(x) (x).begin(), (x).end()
#define arr_all(x, n) (x + 1), (x + 1 + n)
using namespace std;
//using namespace __gnu_pbds;
//typedef tree <int, null_type, less_equal <int> , rb_tree_tag, tree_order_statistics_node_update> ordered_set;
typedef long long ll;
typedef long double ld;

int pr[N], ra[N], i, j, ans, n, p[N];
vector <pair <int, pair <int, int> > > g;

int f(int x)
{
    if (pr[x] != x) return (pr[x] = f(pr[x]));
    return x;
}

void link(int x, int y)
{
    x = f(x);
    y = f(y);

    if (ra[x] > ra[y]) pr[x] = y;
    else
    {
        pr[y] = x;
        if (ra[x] == ra[y]) ra[y]++;
    }
}

int main()
{
    srand(time(0));
    ios_base::sync_with_stdio(0);
    iostream::sync_with_stdio(0);
    ios::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);
//
//    in("input.txt");
//    out("output.txt");

    cin >> n;

    assert(n <= 1000);

    for (i = 1; i <= n; i++)
        cin >> p[i], pr[i] = i, ra[i] = 1;

    for (i = 1; i <= n; i++)
       for (j = i + 1; j <= n; j++)
    {
        int a = max(p[i], p[j]);
        int b = min(p[i], p[j]);

        g.pb({a % b, {i, j}});
    }

    sort(all(g));
    reverse(all(g));

    while (sz(g))
    {
        int a = g.back().S.F, b = g.back().S.S;
        int cost = g.back().F;
        g.pop_back();

        if (f(a) != f(b))
        {
            ans += cost;
            link(a, b);
        }
    }

    cout << ans;
}
//
//00000
//00110
//00111
//00011
//00000

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 57 ms 6640 KB Output is correct
2 Correct 71 ms 6640 KB Output is correct
3 Correct 68 ms 6808 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 6640 KB Output is correct
2 Correct 82 ms 6640 KB Output is correct
3 Correct 66 ms 6640 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 66 ms 6640 KB Output is correct
2 Correct 53 ms 6640 KB Output is correct
3 Correct 66 ms 6640 KB Output is correct

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Runtime error 6 ms 512 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #5
0 / 14.0

# Verdict Execution time Memory Grader output
1 Runtime error 6 ms 512 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #6
0 / 14.0

# Verdict Execution time Memory Grader output
1 Runtime error 6 ms 512 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #7
0 / 14.0

# Verdict Execution time Memory Grader output
1 Runtime error 6 ms 512 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #8
0 / 14.0

# Verdict Execution time Memory Grader output
1 Runtime error 5 ms 512 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #9
0 / 14.0

# Verdict Execution time Memory Grader output
1 Runtime error 6 ms 512 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #10
0 / 14.0

# Verdict Execution time Memory Grader output
1 Runtime error 6 ms 512 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -