| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 971831 |
2024-04-29T11:18:15 Z |
yeediot |
Pinball (JOI14_pinball) |
C++17 |
|
1 ms |
2424 KB |
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define F first
#define S second
#define all(x) x.begin(),x.end()
#define pii pair<int,int>
#define pb push_back
#define sz(x) (int)(x.size())
#define chmin(x,y) x=min(x,y)
#define chmax(x,y) x=max(x,y)
#define vi vector<int>
#define vp vector<pii>
#define vvi vector<vi>
#define ykh mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count())
#define __lg(x) 63-__builtin_clzll(x)
#define pow2(x) (1LL<<x)
void __print(int 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...);}
#ifdef local
void setio(){freopen("/Users/iantsai/Library/Mobile Documents/com~apple~CloudDocs/cpp/Empty.md","r",stdin);}
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
void setio(){}
#define debug(x...)
#endif
void setIO(string s) {
freopen((s + ".in").c_str(), "r", stdin);
freopen((s + ".out").c_str(), "w", stdout);
}
struct line{
int a,b;
int operator()(const int x)const{
return a*x+b;
}
};
bool check(line l1,line l2,line l3){
return (l3.b-l2.b)*(l1.a-l2.a)<=(l2.b-l1.b)*(l2.a-l3.a);
}
vector<int>temp;
int get(int x){
return lower_bound(all(temp),x)-temp.begin()+1;
}
const int mxn=3e5+5;
const int inf=1e18;
int n;
struct segtree{
int seg[4*mxn];
bool upd=0;
void build(int l,int r,int id){
seg[id]=inf;
if(l==r){
return;
}
int mm=l+r>>1;
build(l,mm,id*2);
build(mm+1,r,id*2+1);
}
void modify(int l,int r,int id,int p,int v){
if(l==r){
if(v<=seg[id]){
upd=1;
}
chmin(seg[id],v);
return;
}
int mm=l+r>>1;
if(p<=mm){
modify(l,mm,id*2,p,v);
}
else{
modify(mm+1,r,id*2+1,p,v);
}
seg[id]=min(seg[id*2],seg[id*2+1]);
}
int query(int l,int r,int id,int ql,int qr){
if(qr<l or r<ql){
return inf;
}
if(ql<=l and r<=qr){
return seg[id];
}
int mm=l+r>>1;
return min(query(l,mm,id*2,ql,qr),query(mm+1,r,id*2+1,ql,qr));
}
void modify(int p,int v){
modify(1,sz(temp),1,get(p),min(v,inf));
}
int query(int ql,int qr){
return query(1,sz(temp),1,get(ql),get(qr));
}
}tl,tr;
vector<tuple<int,int,int,int>>v;
signed main(){
setio();
ios::sync_with_stdio(0);
cin.tie(0);cout.tie(0);
int m;
cin>>n>>m;
for(int i=1;i<=n;i++){
int a,b,c,d;
cin>>a>>b>>c>>d;
temp.pb(a);
temp.pb(b);
temp.pb(c);
v.pb({a,b,c,d});
}
temp.pb(1);
temp.pb(m);
for(int i=1;i<=m;i++){
temp.pb(i);
}
sort(all(temp));
temp.resize(unique(all(temp))-temp.begin());
tl.build(1,sz(temp),1);
tr.build(1,sz(temp),1);
tl.modify(1,0);
tr.modify(m,0);
int ans=inf;
for(int i=1;i<=n;i++){
auto [a,b,c,d]=v[i-1];
bool mn=0;
int x=tl.query(a,b);
tl.modify(c,x+d);
x=tr.query(a,b);
tr.modify(c,x+d);
if(tl.upd and tr.upd){
mn=1;
}
tl.upd=0;
tr.upd=0;
x=tl.query(c,c);
int y=tr.query(c,c);
if(x!=inf and y!=inf){
chmin(ans,x+y-mn*d);
}
}
cout<<(ans>=1e15?-1:ans)<<'\n';
}
/*
input:
*/
Compilation message
pinball.cpp: In member function 'void segtree::build(long long int, long long int, long long int)':
pinball.cpp:69:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
69 | int mm=l+r>>1;
| ~^~
pinball.cpp: In member function 'void segtree::modify(long long int, long long int, long long int, long long int, long long int)':
pinball.cpp:81:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
81 | int mm=l+r>>1;
| ~^~
pinball.cpp: In member function 'long long int segtree::query(long long int, long long int, long long int, long long int, long long int)':
pinball.cpp:97:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
97 | int mm=l+r>>1;
| ~^~
pinball.cpp: In function 'void setIO(std::string)':
pinball.cpp:42:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
42 | freopen((s + ".in").c_str(), "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
pinball.cpp:43:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
43 | freopen((s + ".out").c_str(), "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2424 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Incorrect |
1 ms |
2396 KB |
Output isn't correct |
| 7 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2424 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Incorrect |
1 ms |
2396 KB |
Output isn't correct |
| 7 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2424 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Incorrect |
1 ms |
2396 KB |
Output isn't correct |
| 7 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2424 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Incorrect |
1 ms |
2396 KB |
Output isn't correct |
| 7 |
Halted |
0 ms |
0 KB |
- |
