| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 442028 |
2021-07-06T19:30:06 Z |
CSQ31 |
Džumbus (COCI19_dzumbus) |
C++17 |
|
41 ms |
24268 KB |
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
#define sz(a) (int)(a.size())
#define all(a) a.begin(),a.end()
#define lb lower_bound
#define ub upper_bound
#define owo ios_base::sync_with_stdio(0);cin.tie(0);
#define INF (ll)(1e18)
#define debug(...) fprintf(stderr, __VA_ARGS__),fflush(stderr)
#define time__(d) for(long blockTime = 0; (blockTime == 0 ? (blockTime=clock()) != 0 : false);\
debug("%s time : %.4fs\n", d, (double)(clock() - blockTime) / CLOCKS_PER_SEC))
typedef long long int ll;
typedef long double ld;
typedef pair<ll,ll> PII;
typedef pair<int,int> pii;
typedef vector<vector<int>> vii;
typedef vector<vector<ll>> VII;
ll gcd(ll a,ll b){if(!b)return a;else return gcd(b,a%b);}
const int MAXN = 2000;
vii adj(MAXN);
vector<ll>d(MAXN);
vector<int>vis(MAXN),comp(MAXN),sub(MAXN);
ll dp[2][MAXN][MAXN];
//v not taken,v taken
//there is also a singleton state thonk but this state is constant no need extra more stuff
void dfs(int v,int u){
sub[v] = 1;
dp[0][v][0] = 0;
for(int x:adj[v]){
if(x != u){
dfs(x,v);
sub[v]+=sub[x];
}
}
int cur = 1;
for(int x:adj[v]){
if(x == u)continue;
for(int i=cur;i>=0;i--){
for(int j=0;j<=sub[x];j++){
if(j+i > sub[x]+cur)break;
dp[0][v][i+j] = min(dp[0][v][i+j],dp[0][v][i]+min(dp[0][x][j],dp[1][x][j]));
dp[1][v][i+j] = min(dp[1][v][i+j],dp[1][v][i]+min(dp[0][x][j],dp[1][x][j]));
}
//account for singletons
if(i>1)dp[1][v][i+1] = min(dp[1][v][i+1],dp[1][v][i] + d[x]);
}
dp[1][v][2] = min(dp[1][v][2],d[v]+d[x]);
cur+=sub[x];
}
}
int main()
{
owo
int n,m;
cin>>n>>m;
for(int i=1;i<=n;i++)cin>>d[i];
for(int i=0;i<m;i++){
int v,u;
cin>>v>>u;
adj[v].pb(u);
adj[u].pb(v);
}
for(int i=0;i<=n;i++){
for(int j=0;j<=n;j++){
dp[0][i][j] = dp[1][i][j] = INF;
}
}
dfs(1,0);
//for(int i=0;i<=n;i++)cout<<dp[0][1][i]<<" "<<dp[1][1][i]<<'\n';
vector<PII>a;
for(int i=0;i<=n;i++)a.pb({min(dp[0][1][i],dp[1][1][i]),i});
sort(all(a));
vector<int>mx(n+1,0);
for(int i=0;i<=n;i++){
mx[i] = a[i].se;
if(i)mx[i] = max(mx[i],mx[i-1]);
}
int q;
cin>>q;
while(q--){
ll s;
cin>>s;
int p = ub(all(a),make_pair(s*1LL,INF)) - a.begin();
cout<<mx[p-1]<<'\n';
}
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
15 ms |
24268 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
15 ms |
24268 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
41 ms |
3100 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
15 ms |
24268 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
