Submission #1168826

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1168826	2025-03-18 03:51:24	Warinchai	Skyscraper (JOI16_skyscraper)	C++20	0 / 100	1 ms	1604 KiB

skyscraper

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#include<bits/stdc++.h>
#define int long long
using namespace std;
vector<int>h;
int dp[105][105][1005][3];
int md=1e9+7;
int32_t main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n,l;cin>>n>>l;
    for(int i=1;i<=n;i++){
        int a;cin>>a;
        h.push_back(a);
    }
    h.push_back(0);
    sort(h.begin(),h.end());
    dp[0][0][0][0]=1;
    dp[1][1][0][0]=1;
    dp[1][1][0][1]=2;
    for(int i=1;i<n;i++){
        for(int j=1;j<=n;j++){
            for(int k=0;k<=l;k++){
                for(int m=0;m<3;m++){
                    int cost=k+(h[i+1]-h[i])*(2*j-m);
                    if(cost>l)continue;
                    //add middle component
                    dp[i+1][j+1][cost][m]+=dp[i][j][k][m]*(j-m+1);
                    dp[i+1][j+1][cost][m]%=md;
                    //add end component
                    dp[i+1][j+1][cost][m+1]+=dp[i][j][k][m]*(2-m);
 
 
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• Subtask 1: 0 / 5
• Subtask 2: 0 / 15
• Subtask 3: 0 / 80