| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 792381 |
2023-07-25T03:53:43 Z |
bLIC |
Džumbus (COCI19_dzumbus) |
C++17 |
|
45 ms |
17480 KB |
/**
* Author: Anil Byar
**/
#include <bits/stdc++.h>
// #include <ext/pb_ds/assoc_container.hpp>
// #include <ext/pb_ds/tree_policy.hpp>
// using namespace __gnu_pbds;
using namespace std;
// template<class T>
// using ordered_set = tree<T, null_type, less_equal<T>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define sz(x) (int)(x).size()
#define uniq(v) v.erase(unique(all(v)), v.end())
#define ft first
#define sd second
#define pb push_back
#define eb emplace_back
// Source: https://codeforces.com/blog/entry/68809
// { start
void __print(int x) {cerr << x;}
void __print(long x) {cerr << x;}
void __print(long long x) {cerr << x;}
void __print(unsigned x) {cerr << x;}
void __print(unsigned long x) {cerr << x;}
void __print(unsigned long long x) {cerr << x;}
void __print(float x) {cerr << x;}
void __print(double x) {cerr << x;}
void __print(long double x) {cerr << x;}
void __print(char x) {cerr << '\'' << x << '\'';}
void __print(const char *x) {cerr << '"' << x << '"';}
void __print(const string &x) {cerr << '"' << x << '"';}
void __print(bool x) {cerr << (x ? "true" : "false");}
template<typename T, typename V>
void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ','; __print(x.second); cerr << '}';}
template<typename T>
void __print(const T &x) {int f = 0; cerr << '{'; for (auto &i: x) cerr << (f++ ? "," : ""), __print(i); cerr << "}";}
void _print() {cerr << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}
#ifndef ONLINE_JUDGE
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
#define debug(x...)
#endif
// } end
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef vector<int> vi;
typedef vector<pii> vii;
typedef vector<ll> vl;
typedef vector<pll> vll;
typedef vector<vi> vvi;
typedef vector<vii> vvii;
typedef vector<vl> vvl;
#define dbg if(0)
const ll MOD = 1e9+7;
const ll MOD9 = 998244353;
const ll INFLL = 1e18+5;
const int INF = 1e9;
void printbit(int x, int len) {string s="\n";while(len--){s=((x%2)?'1':'0')+s;x/=2;} cout<<s;}
ll power(ll x, ll y, ll mod){if (y==0) return 1;ll ret = power(x, y/2, mod);ret *= ret;ret%=mod;if (y&1) ret *= x;return ret%mod;}
ll modinv(ll x, ll mod = MOD) {return power(x, mod-2, mod);}
template<class T> bool chmin(T& a, T b){return (a>b?a=b,1:0);}
template<class T> bool chmax(T& a, T b){return (a<b?a=b,1:0);}
template<class T>
istream& operator>>(istream&in, vector<T>&v){
for (T& x:v) in>>x;
return in;
}
template<class T>
ostream& operator<<(ostream&out, vector<T>&v){
for (T& x:v) out<<x<<' ';
cout<<'\n';
return out;
}
// use ?: with brackets (?:)
// check for overflow
// think about dp
// Read the statement carefully
const int N = 1001;
vi adj[N];
vvl dp[N];
ll val[N];
bool vis[N];
/*
dp[n][0] = node n is neither relaxed nor exchanging.
dp[n][1] = node n is relaxed but not exchanging.
dp[n][2] = node n is relaxed and exchanging.
*/
vvl merge(const vvl& a, const vvl& b){
vvl res(4, vl(sz(a[0])+sz(b[0])-1, INFLL));
for (int i = 0;i<sz(a[0]);i++){
for (int j =0;j<sz(b[0]);j++){
chmin(res[0][i+j], a[0][i] + min({b[0][j], b[2][j]}));
chmin(res[1][i+j], a[1][i] + b[0][j]);
chmin(res[3][i+j], a[3][i] + b[0][j]);
if (j) chmin(res[3][i+j], a[3][i] + b[1][j-1]);
chmin(res[3][i+j], a[3][i] + b[2][j]);
chmin(res[2][i+j], a[2][i] + b[0][j]);
if (j) chmin(res[2][i+j], a[3][i] + b[1][j-1]);
chmin(res[2][i+j], a[3][i] + b[2][j]);
assert(min({res[0][i+j], res[1][i+j], res[2][i+j]})>=0);
}
}
return res;
}
vl diff_merge(const vl& a, const vl& b){
vl res(sz(a) + sz(b) - 1, INFLL);
for (int i = 0;i<sz(a);i++) for (int j = 0;j<sz(b);j++) {
chmin(res[i+j], a[i] + b[j]);
assert(res[i+j]>=0);
}
return res;
}
void dfs(int node, int p){
vis[node] = true;
vvl res(4, vl(1));
res[2][0] = INFLL;
for (int x:adj[node]) if (x!=p){
dfs(x, node);
res = merge(res, dp[x]);
// debug(node, x, res);
}
for (int i = 0;i<sz(res[1]);i++) if (res[1][i]!=INFLL) res[1][i] += val[node];
res[0].push_back(INFLL);
res[1].push_back(INFLL);
for (ll& x:res[2]) if (x!=INFLL) x += val[node];
res[2].insert(res[2].begin(), 0);
res[2][1] = INFLL;
// debug(node, res);
dp[node] = res;
}
void solve(){
int n, m;cin>>n>>m;
for (int i = 1;i<=n;i++) cin>>val[i];
for (int i = 0;i<m;i++){
int a, b;cin>>a>>b;
adj[a].pb(b);
adj[b].pb(a);
}
vl res(1);
for (int j = 1;j<=n;j++){
if (vis[j]) continue;
dfs(j, 0);
// debug(j);
for (int i = sz(dp[j][0])-1;i>=0;i--) chmin(dp[j][0][i], min(dp[j][1][i], dp[j][2][i]));
for (int i = sz(dp[j][0])-2;i>=0;i--) chmin(dp[j][0][i], dp[j][0][i+1]);
res = diff_merge(res, dp[j][0]);
}
for (int i = sz(res) - 2;i>=0;i--){
chmin(res[i], res[i+1]);
}
debug(res);
int q;cin>>q;
while(q--){
ll av;cin>>av;
auto ind = upper_bound(all(res), av) - res.begin() - 1;
cout<<ind<<'\n';
}
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
cout.tie(nullptr);
#define ONLINE_JUDGE
#ifndef ONLINE_JUDGE
freopen("input.in", "r", stdin);
freopen("output.out", "w", stdout);
freopen("debug.dbg", "w", stderr);
int tt = clock();
#endif
int t=1, i = 1;
// cin>>t;
while(t--){
// cout<<"Case #"<<i++<<": ";
solve();
cout<<'\n';
}
#ifndef ONLINE_JUDGE
cerr << "TIME = " << (float)(clock() - tt)/CLOCKS_PER_SEC << endl;
tt = clock();
#endif
}
Compilation message
dzumbus.cpp: In function 'int main()':
dzumbus.cpp:205:14: warning: unused variable 'i' [-Wunused-variable]
205 | int t=1, i = 1;
| ^
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
11 ms |
10580 KB |
Output is correct |
| 2 |
Correct |
13 ms |
14468 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
11 ms |
10580 KB |
Output is correct |
| 2 |
Correct |
13 ms |
14468 KB |
Output is correct |
| 3 |
Correct |
45 ms |
17480 KB |
Output is correct |
| 4 |
Correct |
44 ms |
14412 KB |
Output is correct |
| 5 |
Correct |
43 ms |
12832 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
37 ms |
1308 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
11 ms |
10580 KB |
Output is correct |
| 2 |
Correct |
13 ms |
14468 KB |
Output is correct |
| 3 |
Correct |
45 ms |
17480 KB |
Output is correct |
| 4 |
Correct |
44 ms |
14412 KB |
Output is correct |
| 5 |
Correct |
43 ms |
12832 KB |
Output is correct |
| 6 |
Incorrect |
37 ms |
1308 KB |
Output isn't correct |
| 7 |
Halted |
0 ms |
0 KB |
- |
