Cod sursa(job #2766104)

Utilizator BossBobsterRobert Alexandru Costin BossBobster Data 31 iulie 2021 07:17:03
Problema 1-sir Scor 70
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 1.5 kb
#include <iostream>
#include <string.h>
#include <random>
#include <fstream>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <iomanip>
#include <algorithm>
#include <math.h>
#include <cmath>
#include <vector>
#include <stack>
#include <queue>
#include <bitset>
#include <map>
#include <set>
#include <unordered_map>
#include <unordered_set>
#include <complex>
#include <valarray>
//#include <ext/pb_ds/assoc_container.hpp>
//using namespace __gnu_pbds;
using namespace std;
typedef pair<int, int> pii;
typedef pair<int, string> pis;
typedef pair<string, string> pss;
typedef pair<int, char> pic;
typedef pair<pii, int> piii;
typedef pair<double, double> pdd;
typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
typedef unsigned int uint;
typedef pair<ll, ll> pll;
typedef pair<int, ll> pil;
typedef pair<ull, ull> pull;
typedef complex<double> cd;
//#define max(n, m) ((n>m)?n:m)
//#define min(n, m) ((n<m)?n:m)
#define f first
#define s second
#define input() ios_base::sync_with_stdio(0);cin.tie(0);

ifstream fin("1-sir.in");
ofstream fout("1-sir.out");

int mod = 194767;
int dp[2][100010];
int main()
{
    int n, m, a, cur = 1;
    fin >> n >> m;
    a = 50000;
    dp[0][a] = 1;
    if(m+a < 0 || m+a >= 100000)
    {
        fout << "0\n";
        return 0;
    }
    for(int i = 1; i < n; i ++)
    {
        for(int j = -cur; j <= cur; j ++)
            dp[i&1][j+a] = (dp[!(i&1)][j-i+a] + dp[!(i&1)][j+i+a]) % mod;
        cur += i+1;
    }
    fout << dp[(n+1)%2][m+a] << "\n";
}