oj.uz

Submission #895402

# Submission time Handle Problem Language Result Execution time Memory
895402 2023-12-29T21:17:44 Z thunopro Treatment Project (JOI20_treatment) C++14
4 / 100
 88 ms 7052 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 77 ms 6820 KB Output is correct
2 Correct 80 ms 6712 KB Output is correct
3 Correct 67 ms 6824 KB Output is correct
4 Correct 58 ms 6700 KB Output is correct
5 Correct 45 ms 6596 KB Output is correct
6 Correct 58 ms 6704 KB Output is correct
7 Correct 65 ms 6612 KB Output is correct
8 Correct 44 ms 6596 KB Output is correct
9 Correct 51 ms 6716 KB Output is correct
10 Correct 56 ms 6700 KB Output is correct
11 Correct 79 ms 6772 KB Output is correct
12 Correct 77 ms 7052 KB Output is correct
13 Correct 82 ms 6748 KB Output is correct
14 Correct 84 ms 6800 KB Output is correct
15 Correct 88 ms 6704 KB Output is correct
16 Correct 81 ms 6692 KB Output is correct
17 Correct 78 ms 6752 KB Output is correct
18 Correct 70 ms 6692 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 1 ms 2396 KB Output is correct
3 Correct 1 ms 2472 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 1 ms 2396 KB Output is correct
3 Correct 1 ms 2472 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 77 ms 6820 KB Output is correct
2 Correct 80 ms 6712 KB Output is correct
3 Correct 67 ms 6824 KB Output is correct
4 Correct 58 ms 6700 KB Output is correct
5 Correct 45 ms 6596 KB Output is correct
6 Correct 58 ms 6704 KB Output is correct
7 Correct 65 ms 6612 KB Output is correct
8 Correct 44 ms 6596 KB Output is correct
9 Correct 51 ms 6716 KB Output is correct
10 Correct 56 ms 6700 KB Output is correct
11 Correct 79 ms 6772 KB Output is correct
12 Correct 77 ms 7052 KB Output is correct
13 Correct 82 ms 6748 KB Output is correct
14 Correct 84 ms 6800 KB Output is correct
15 Correct 88 ms 6704 KB Output is correct
16 Correct 81 ms 6692 KB Output is correct
17 Correct 78 ms 6752 KB Output is correct
18 Correct 70 ms 6692 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2472 KB Output is correct
22 Incorrect 1 ms 2396 KB Output isn't correct
23 Halted 0 ms 0 KB -