oj.uz

Submission #895401

# Submission time Handle Problem Language Result Execution time Memory
895401 2023-12-29T21:15:35 Z thunopro Treatment Project (JOI20_treatment) C++14
4 / 100
 87 ms 10036 KB 
#include<bits/stdc++.h>
using namespace std ; 
#define maxn 300009 
#define ll long long 
#define fi first 
#define se second 
#define pb push_back 
#define left id<<1 
#define right id<<1|1
#define re exit(0);
#define _lower(v,x) lower_bound(v.begin(),v.end(),x)-v.begin()+1

const int mod = 1e9+7 ; 
const int INF = 1e9 ;
const int LOG = 18 ; 

typedef vector<int> vi ; 
typedef pair<int,int> pii ; 
typedef vector<pii> vii ;
typedef vector<ll> vl ;  
typedef pair<ll,ll> pll ; 
typedef vector<pll> vll ; 

void add ( int&a , int b ) { if ((a+=b) > mod ) a -= mod ; } 
void sub ( int&a , int b ) { if ((a-=b) < 0 ) a += mod ; } 
template<typename T> void chkmin(T& x, T y) {if(x > y) x = y;}
template<typename T> void chkmax(T& x, T y) {if(x < y) x = y;}

void rf ( ) 
{
	freopen ("bai1.inp","r",stdin) ; 
//	freopen ("bai1.out","w",stdout) ;
}

int _pow ( int a , int n ) 
{
	if ( n == 0 ) return 1 ; 
	int res = _pow ( a , n / 2 ) ; 
	if ( n % 2 ) return ( 1ll * res * res % mod * a % mod ) ; 
	else return ( 1ll * res * res % mod ) ; 
}

int n , m ; 

struct project {
	int t , l , r , c ; 
} a[maxn];

struct dat {
	int l , r , c ; 
};
vector <dat> vec ; 

int map_n ; 
void mapping () 
{
	vi v ; 
	v . pb (n) ; 
	v . pb (1) ; 
	for ( int i = 1 ; i <= m ; i ++ ) v . pb (a[i].l) , v . pb (a[i].r) , v . pb (a[i].r+1); 
	sort (v.begin(),v.end()) ; 
	v.resize (unique(v.begin(),v.end())-v.begin()) ; 
	for ( auto &x : vec ) x.l = _lower(v,x.l) , x.r = _lower(v,x.r) ; 
	map_n = _lower (v,n) ; 
}

const int N = 3e5 ; 
const int maxN = 3e5+9  ; 

ll bit [maxN] ; 
void clear_bit () 
{
	for ( int i = 1 ; i <= map_n ; i ++ ) bit [i] = 1e18 ;  
}

void update ( int x , ll y ) 
{
	while ( x ) chkmin (bit[x],y) , x -= (x&-x) ; 
}
ll get ( int x ) 
{
	if ( ! x ) return 0 ; 
	ll res = 1e18 ; 
	while ( x <= map_n ) chkmin (res,bit[x]) , x += (x&-x) ; 
	return res ; 
}

bool cmp_vec ( dat u , dat v ) 
{
	return u.l < v.l ; 
}
void sub1 () 
{
	set <int> S; 
	ll res = 1e18 ; 
	for ( int i = 1 ; i <= m ; i ++ ) S . insert (a[i].t) ; 
	for ( auto TIME : S ) 
	{
		vec.clear() ; 
		for ( int i = 1 ; i <= m ; i ++ ) 
		{
			if ( a[i].t <= TIME ) 
			{
				int l = a[i].l , r = a[i].r ; 
				if ( l != 1 ) l += TIME - a[i].t ;
				if ( r != n ) r -= TIME - a[i].t ; 
				if ( l <= r ) vec . pb ({l,r,a[i].c}) ; 
			}
		}
		mapping () ; 
		clear_bit () ; 
		sort (vec.begin(),vec.end(),cmp_vec) ;
		for ( auto x : vec ) 
		{
			ll dp = get (x.l-1) + x.c ; 
			update (x.r,dp) ; 
		}
		chkmin (res,get(map_n)) ; 
	}
	if ( res == 1e18 ) res = - 1 ; 
	cout << res ; 
}
// dp [i] la hoanh thanh den i 
// dp [i] = dp [j-1] + cost (i,j) 
int main ( ) 
{
	ios_base :: sync_with_stdio (0) ; 
	cin.tie(0) ; cout.tie(0) ;
//	rf () ;
	cin >> n >> m ; 
	for ( int i = 1 ; i <= m ; i ++ ) cin >> a[i].t >> a[i].l >> a[i].r >> a[i].c ; 
	
	sub1 () ; 
}




//-std=c++11 
// range , time , error , stay hard stay hard 
// there is no tomorrow

Compilation message

treatment.cpp: In function 'void rf()':
treatment.cpp:31:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   31 |  freopen ("bai1.inp","r",stdin) ;
      |  ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 78 ms 10028 KB Output is correct
2 Correct 77 ms 9976 KB Output is correct
3 Correct 61 ms 8988 KB Output is correct
4 Correct 59 ms 9124 KB Output is correct
5 Correct 44 ms 9652 KB Output is correct
6 Correct 57 ms 9640 KB Output is correct
7 Correct 57 ms 9668 KB Output is correct
8 Correct 45 ms 9768 KB Output is correct
9 Correct 54 ms 9680 KB Output is correct
10 Correct 58 ms 9992 KB Output is correct
11 Correct 81 ms 10036 KB Output is correct
12 Correct 82 ms 10032 KB Output is correct
13 Correct 84 ms 9880 KB Output is correct
14 Correct 87 ms 10024 KB Output is correct
15 Correct 84 ms 9868 KB Output is correct
16 Correct 86 ms 9880 KB Output is correct
17 Correct 78 ms 9264 KB Output is correct
18 Correct 71 ms 9256 KB Output is correct

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Incorrect 1 ms 2396 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Incorrect 1 ms 2396 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 78 ms 10028 KB Output is correct
2 Correct 77 ms 9976 KB Output is correct
3 Correct 61 ms 8988 KB Output is correct
4 Correct 59 ms 9124 KB Output is correct
5 Correct 44 ms 9652 KB Output is correct
6 Correct 57 ms 9640 KB Output is correct
7 Correct 57 ms 9668 KB Output is correct
8 Correct 45 ms 9768 KB Output is correct
9 Correct 54 ms 9680 KB Output is correct
10 Correct 58 ms 9992 KB Output is correct
11 Correct 81 ms 10036 KB Output is correct
12 Correct 82 ms 10032 KB Output is correct
13 Correct 84 ms 9880 KB Output is correct
14 Correct 87 ms 10024 KB Output is correct
15 Correct 84 ms 9868 KB Output is correct
16 Correct 86 ms 9880 KB Output is correct
17 Correct 78 ms 9264 KB Output is correct
18 Correct 71 ms 9256 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 0 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Incorrect 1 ms 2396 KB Output isn't correct
23 Halted 0 ms 0 KB -