Submission #902596

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
902596	2024-01-10 18:51:39	Spade1	Skyscraper (JOI16_skyscraper)	C++14	20 / 100	2097 ms	47696 KiB

skyscraper

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#include <bits/stdc++.h>
#define ll long long
#define pii pair<int, int>
#define pll pair<ll ll>
#define st first
#define nd second
#define pb push_back
using namespace std;
const int maxN = 1e2 + 2;
const int maxL = 1e3 + 2;
const int M = 1e9 + 7;
ll dp[maxN][10*maxL][3], tmp[maxN][10*maxL][3], a[maxN];
void solve() {
    ll n, l; cin >> n >> l;
    if (n == 1) {
        cout << 1 << '\n';
        return;
    }
    for (int i = 1; i <= n; ++i) cin >> a[i];
    sort(a+1, a+n+1);
    tmp[0][5*l][0] = 1;
    for (int i = 1; i <= n; ++i) {
        for (int j = 1; j <= n; ++j) {
            for (int k = 0; k <= 10*l; ++k) {
                if (k+2*a[i] <= 10*l) {
                    dp[j][k][0] = (dp[j][k][0] + j*tmp[j-1][k+2*a[i]][0]) % M;
                    dp[j][k][1] = (dp[j][k][1] + (j-1)*tmp[j-1][k+2*a[i]][1]) % M;
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 15 / 15
• Subtask 3: 0 / 80