Submission #54583335

Source Code Expand

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#include <iostream>
#include <stdio.h>
#include <math.h>
#include <vector>
#include <algorithm>
#include <set>
#include <map>
#include <fstream>
#include <iomanip>
#include <stack>
#include <cmath>
#include <queue>
#include <assert.h>
#include <climits>
#include <functional>
#include <string>
#include <utility>
#include <unordered_set>
#include <numeric>
#include <random>
#include <complex>
 
 
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#include <iostream>
#include <stdio.h>
#include <math.h>
#include <vector>
#include <algorithm>
#include <set>
#include <map>
#include <fstream>
#include <iomanip>
#include <stack>
#include <cmath>
#include <queue>
#include <assert.h>
#include <climits>
#include <functional>
#include <string>
#include <utility>
#include <unordered_set>
#include <numeric>
#include <random>
#include <complex>
#include <tuple>
#include <array>
#include <bitset>

using namespace std;



typedef vector<int> vi;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<int, ll> pil;
typedef pair<ll, ll> pll;
typedef pair<ll, pii> plp;
typedef pair<pii, int> ppi;
typedef long double ld;
typedef vector<double> vd;
typedef array<int, 4> a4;

const int MOD=998244353;

int ad(int a, int b){
    a += b;
    if(a >= MOD)a -= MOD;
    return a;
}
int sub(int a, int b){
    a -= b;
    if(a < 0) a += MOD;
    return a;
}
int mult(int a, int b){
    return (int)((ll)a*b%MOD);
}
int exp(int a, int b){
    int res = 1;
    while(b){
        if(b%2) res = mult(res, a);
        a = mult(a, a);
        b /= 2;
    }
    return res;
}
int inv(int a){ return exp(a, MOD-2);}
vector<int> fct;
vector<int> ifct;
int comb(int n, int k){
    if(k < 0 || k > n) return 0;
    return mult(fct[n], mult(ifct[k], ifct[n-k]));
}

int main(){
    fct = vector<int>(1001);
    ifct = vector<int>(1001);
    fct[0] = 1;
    for(int i = 1; i <= 1000; i++){
        fct[i] = mult(fct[i-1], i);
    }
    ifct[1000] = inv(fct[1000]);
    for(int i = 1000; i >= 1; i--){
        ifct[i-1] = mult(ifct[i], i);
    }
    cin.tie(0)->sync_with_stdio(0);

    int K;
    cin >> K;
    vector<int> dp(K+1, 0);
    dp[0] = 1;

    for(int i = 0; i < 26; i++){
        vector<int> tdp(K+1, 0);
        int C;
        cin >> C;
        int run = 1;
        tdp[0] = 1;
        for(int e = 1; e <= K; e++){
            for(int j = max(0, e-C); j <= e; j++){
                tdp[e] = ad(tdp[e], mult(dp[j], comb(e, j)));
            }
        }
        dp = tdp;
        //cout << dp[0] << " " << dp[1] << " " << dp[2] << endl;
    }

    int res = 0;
    for(int i = 1; i <= K; i++) res = ad(res, dp[i]);
    cout << res << endl;

    return 0;
}

Submission Info

Compile Error

Main.cpp: In function ‘int main()’:
Main.cpp:95:13: warning: unused variable ‘run’ [-Wunused-variable]
   95 |         int run = 1;
      |             ^~~

Judge Result