oj.uz

Submission #936981

# Submission time Handle Problem Language Result Execution time Memory
936981 2024-03-03T07:40:41 Z gaga999 Naboj (COCI22_naboj) C++17
110 / 110
 88 ms 13972 KB 
#include <cstdio>
#include <stdio.h>
#include <iostream>
#include <math.h>
#include <vector>
#include <queue>
#include <stack>
#include <deque>
#include <algorithm>
#include <utility>
#include <set>
#include <map>
#include <stdlib.h>
#include <cstring>
#include <string.h>
#include <string>
#include <sstream>
#include <assert.h>
#include <climits>
#include <sstream>
#include <numeric>
#include <time.h>
#include <limits.h>
#include <list>
#include <bitset>
#include <unordered_map>
#include <unordered_set>
#include <random>
#include <iomanip>
#include <complex>
#include <chrono>
#include <fstream>
#include <functional>
#include <unistd.h>
// #pragma GCC optimize("Ofast,no-stack-protector")
// #pragma GCC optimize("O3,unroll-loops")
// #pragma GCC target("avx,avx2,bmi,bmi2,lzcnt,popcnt")
#define lowbit(x) ((x) & -(x))
#define ml(a, b) ((1ll * (a) * (b)) % M)
#define tml(a, b) (a) = ((1ll * (a) * (b)) % M)
#define ad(a, b) ((0ll + (a) + (b)) % M)
#define tad(a, b) (a) = ((0ll + (a) + (b)) % M)
#define mi(a, b) ((0ll + M + (a) - (b)) % M)
#define tmi(a, b) (a) = ((0ll + M + (a) - (b)) % M)
#define tmin(a, b) (a) = min((a), (b))
#define tmax(a, b) (a) = max((a), (b))
#define iter(a) (a).begin(), (a).end()
#define riter(a) (a).rbegin(), (a).rend()
#define init(a, b) memset((a), (b), sizeof(a))
#define cpy(a, b) memcpy((a), (b), sizeof(a))
#define uni(a) a.resize(unique(iter(a)) - a.begin())
#define pb emplace_back
#define mpr make_pair
#define ls(i) ((i) << 1)
#define rs(i) ((i) << 1 | 1)
#define INF 0x3f3f3f3f
#define NIF 0xc0c0c0c0
#define eps 1e-9
#define F first
#define S second
#define AC cin.tie(0)->sync_with_stdio(0)
using namespace std;
typedef long long llt;
typedef pair<int, int> pii;
typedef pair<double, double> pdd;
typedef pair<llt, llt> pll;
typedef complex<double> cd;
// const int M = 998244353;

// random_device rm;
// mt19937 rg(rm());
// default_random_engine rg(rm());
// uniform_int_distribution<int> rd(INT_MIN, INT_MAX);
// uniform_real_distribution<double> rd(0, M_PI);

void db() { cerr << "\n"; }
template <class T, class... U>
void db(T a, U... b) { cerr << a << " ", db(b...); }

inline char gc()
{
    const static int SZ = 1 << 16;
    static char buf[SZ], *p1, *p2;
    if (p1 == p2 && (p2 = buf + fread(p1 = buf, 1, SZ, stdin), p1 == p2))
        return -1;
    return *p1++;
}
void rd() {}
template <typename T, typename... U>
void rd(T &x, U &...y)
{
    x = 0;
    bool f = 0;
    char c = gc();
    while (!isdigit(c))
        f ^= !(c ^ 45), c = gc();
    while (isdigit(c))
        x = (x << 1) + (x << 3) + (c ^ 48), c = gc();
    f && (x = -x), rd(y...);
}

template <typename T>
void prt(T x)
{
    if (x < 0)
        putchar('-'), x = -x;
    if (x > 9)
        prt(x / 10);
    putchar((x % 10) ^ 48);
}

const int N = 2e5 + 5;
int pd[N];
vector<int> eg[N];

signed main()
{
    int n, m, x, y;
    rd(n, m);
    while (m--)
        rd(x, y), eg[x].pb(y), pd[y]++;
    queue<int> q;
    vector<int> ans;
    for (int i = 1; i <= n; i++)
        if (!pd[i])
            q.push(i);
    while (!q.empty())
    {
        x = q.front(), q.pop(), ans.pb(x);
        for (int v : eg[x])
            if (!--pd[v])
                q.push(v);
    }
    for (int i = 1; i <= n; i++)
        if (pd[i])
            puts("-1"), exit(0);
    prt(n), putchar('\n');
    for (int i : ans)
        prt(i), puts(" 0");
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5208 KB Output is correct
2 Correct 1 ms 4956 KB Output is correct
3 Correct 1 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 1 ms 4956 KB Output is correct
7 Correct 2 ms 4956 KB Output is correct
8 Correct 1 ms 4956 KB Output is correct
9 Correct 1 ms 4956 KB Output is correct
10 Correct 2 ms 4956 KB Output is correct
11 Correct 1 ms 4956 KB Output is correct
12 Correct 1 ms 4956 KB Output is correct
13 Correct 1 ms 4956 KB Output is correct
14 Correct 1 ms 4956 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 35 ms 13000 KB Output is correct
2 Correct 41 ms 13012 KB Output is correct
3 Correct 17 ms 9180 KB Output is correct
4 Correct 40 ms 12976 KB Output is correct
5 Correct 36 ms 12844 KB Output is correct
6 Correct 49 ms 12968 KB Output is correct
7 Correct 34 ms 13012 KB Output is correct
8 Correct 28 ms 11204 KB Output is correct
9 Correct 47 ms 13008 KB Output is correct
10 Correct 35 ms 13008 KB Output is correct

Subtask #3
70.0 / 70.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 5208 KB Output is correct
2 Correct 1 ms 4956 KB Output is correct
3 Correct 1 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 1 ms 4956 KB Output is correct
7 Correct 2 ms 4956 KB Output is correct
8 Correct 1 ms 4956 KB Output is correct
9 Correct 1 ms 4956 KB Output is correct
10 Correct 2 ms 4956 KB Output is correct
11 Correct 1 ms 4956 KB Output is correct
12 Correct 1 ms 4956 KB Output is correct
13 Correct 1 ms 4956 KB Output is correct
14 Correct 1 ms 4956 KB Output is correct
15 Correct 35 ms 13000 KB Output is correct
16 Correct 41 ms 13012 KB Output is correct
17 Correct 17 ms 9180 KB Output is correct
18 Correct 40 ms 12976 KB Output is correct
19 Correct 36 ms 12844 KB Output is correct
20 Correct 49 ms 12968 KB Output is correct
21 Correct 34 ms 13012 KB Output is correct
22 Correct 28 ms 11204 KB Output is correct
23 Correct 47 ms 13008 KB Output is correct
24 Correct 35 ms 13008 KB Output is correct
25 Correct 31 ms 10324 KB Output is correct
26 Correct 38 ms 11736 KB Output is correct
27 Correct 41 ms 11856 KB Output is correct
28 Correct 49 ms 12260 KB Output is correct
29 Correct 32 ms 11996 KB Output is correct
30 Correct 41 ms 12116 KB Output is correct
31 Correct 7 ms 5976 KB Output is correct
32 Correct 34 ms 12044 KB Output is correct
33 Correct 58 ms 13764 KB Output is correct
34 Correct 38 ms 12240 KB Output is correct
35 Correct 59 ms 13772 KB Output is correct
36 Correct 34 ms 11972 KB Output is correct
37 Correct 88 ms 13492 KB Output is correct
38 Correct 51 ms 13000 KB Output is correct
39 Correct 64 ms 13816 KB Output is correct
40 Correct 76 ms 13512 KB Output is correct
41 Correct 54 ms 13308 KB Output is correct
42 Correct 73 ms 13964 KB Output is correct
43 Correct 45 ms 12552 KB Output is correct
44 Correct 65 ms 13972 KB Output is correct
45 Correct 37 ms 12292 KB Output is correct
46 Correct 60 ms 13116 KB Output is correct