Submission #412196

#	Time	Username	Problem	Language	Result	Execution time	Memory
412196		arayi	Nice sequence (IZhO18_sequence)	C++17	0 / 100	1 ms	264 KiB

sequence

//Arayi
#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <string>
#include <queue>
#include <stack>
#include <algorithm>
#include <math.h>
#include <vector>
#include <cstring>
#include <ctime>
#include <set>
#include <bitset>
#include <map>
#include <unordered_map>
#include <unordered_set>
#include <iomanip>
#include <ctime>
#include <climits>
#include <cassert>
#include <chrono>
#include <random>
#include <complex>

#define fr first
#define sc second
#define MP make_pair
#define ad push_back
#define PB push_back
#define fastio ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#define lli long long int
#define y1 arayikhalatyan
#define j1 jigglypuff
#define ld long double
#define itn int
#define pir pair<int, int>
#define all(x) (x).begin(), (x).end()
#define str string
#define enl endl
#define en endl
#define cd complex<long double>
#define vcd vector<cd>
#define vii vector<int>
#define vlli vector<lli>
using namespace std;

lli gcd(lli a, lli b) { return (b == 0LL ? a : gcd(b, a % b)); }
ld dist(ld x, ld y1, ld x2, ld y2)
{
    return sqrt((x - x2) * (x - x2) + (y1 - y2) * (y1 - y2));
}
lli S(lli a)
{
    return (a * (a + 1LL)) / 2;
}
mt19937 rnd(363542);
char vow[] = { 'a', 'e', 'i', 'o', 'u' };
int dx[] = { 0, -1, 0, 1, -1, -1, 1, 1, 0 };
int dy[] = { -1, 0, 1, 0, -1, 1, -1, 1, 0 };


const int N = 1e6 + 30;
const lli mod = 1e9 - 1;
const ld pi = acos(-1);
const int T = 550;

lli bp(lli a, lli b = mod - 2LL)
{
    lli ret = 1;
    while (b)
    {
        if (b & 1) ret *= a, ret %= mod;
        a *= a;
        a %= mod;
        b >>= 1;
    }
    return ret;
}
ostream& operator<<(ostream& c, pir a)
{
    c << a.fr << " " << a.sc;
    return c;
}
template<class T>
void maxi(T& a, T b)
{
    a = max(a, b);
}
template <class T>
void mini(T& a, T b)
{
    a = min(a, b);
}


int n, m, n1, m1;
int t;
bool stg(int n, int m, vii fp)
{
    n=n1, m=m1;
    for (int i = 0; i < fp.size(); i++)
    {
        if(i + n <= fp.size())
        {
            int sm = 0;
            for(int j = i; j < i + n; j++) sm+=fp[j];
            if(sm >= 0) return 0;
        }
        if(i + m <= fp.size())
        {
            int sm = 0;
            for(int j = i; j < i + m; j++) sm+=fp[j];
            if(sm <= 0) return 0;
        }
    }
    return 1;
}
void tp(vii fp)
{
    if(stg(0, 0, fp)) return;
    cout << n1 << " " << m1 << endl;
    cout << fp.size() << endl;
    for(auto p : fp) cout << p << " ";
    cout << endl;
    exit(0);
}
void slv(int n, int m)
{
    n1=n,m1=m;
    vii fp;
    if(n == m)
    {
        for (int i = 0; i < n - 1; i++) fp.ad(1);
        tp(fp);
        return;
    }
    int bl = 1;
    if(n > m) swap(n, m), bl = -1;
    if(n==1)
    {
        for (int i = 0; i < m - 1; i++) fp.ad(-bl);
        tp(fp);
        return;
    }
    int x = mod / n;
    if(x*(n-2) == mod + 1) x--;
    for (int i = 1; i <= m + n/gcd(n, m) - 2; i++)
    {
        if(i % n == 0) fp.ad(-bl * (mod + 1 - (n - 2)*x));
        else if(i % n == n - 1) fp.ad(bl * mod);
        else fp.ad(-bl*x);
    }
    tp(fp);
}
int main()
{
    fastio;
    cin >> t;
    while(t--)
    {
        //cin >> n >> m;
        n=t%10+1, m=t/10+1;
        slv(n, m);
    }
    return 0;
}

/*
5 4 4
1 2
3 1
3 4
5 3
4 5 2 3
2 1 3 1
1 3 5
2 3 4 5
2 1 3 1
    __
  *(><)*
    \/ /
    ||/
  --||
    ||
    /\
   /  \
  /    \

*/

Compilation message (stderr)

sequence.cpp: In function 'bool stg(int, int, std::vector<int>)':
sequence.cpp:101:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  101 |     for (int i = 0; i < fp.size(); i++)
      |                     ~~^~~~~~~~~~~
sequence.cpp:103:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  103 |         if(i + n <= fp.size())
      |            ~~~~~~^~~~~~~~~~~~
sequence.cpp:109:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  109 |         if(i + m <= fp.size())
      |            ~~~~~~^~~~~~~~~~~~

• Subtask 1: 0 / 6
• Subtask 2: 0 / 9
• Subtask 3: 0 / 14
• Subtask 4: 0 / 15
• Subtask 5: 0 / 14
• Subtask 6: 0 / 18
• Subtask 7: 0 / 24