Submission #1125808

#	Time	Username	Problem	Language	Result	Execution time	Memory
1125808		thunopro	Topical (NOI23_topical)	C++17	12 / 100	261 ms	122072 KiB

Main

#include<bits/stdc++.h> 
using namespace std; 
#define maxn 1000009
#define ll long long 
#define fi first 
#define se second 
#define pb push_back 
#define re exit(0); 
#define left id<<1 
#define right id<<1|1 
#define _lower(x) lower_bound(v.begin(),v.end(),x)-v.begin() + 1 
const int mod = 1e9+7;  
const int INF = 1e9; 

typedef vector<int> vi ; 
typedef pair<int,int> pii ; 
typedef vector<pii> vii ; 

void add ( int &a , int b ) 
{
	a += b ; 
	if ( a >= mod ) a -= mod ; 
	if ( a < 0 ) a += mod ; 
}

template < typename T > void chkmin ( T &a , T b ) { if ( a > b ) a = b ; } 
template < typename T > void chkmax ( T &a , T b ) { if ( a < b ) a = b ; }

void runfile() { freopen ("bai1.inp","r",stdin) ; } 

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 , k ; 
vector<int> r [maxn] , u[maxn] ; 
int p [maxn] ;
int cnt [maxn] ;

vector<pii> requires [maxn] ;
bool cmp ( pii u , pii v ) 
{
	return u.fi < v.fi ; 
}

int cur [maxn] ; 
int main() 
{
    ios_base::sync_with_stdio(0); 
    cin.tie(0);cout.tie(0);
//    runfile() ; 
	cin >> n >> k ; 
	for ( int i = 1 ; i <= n ; i ++ ) r [i].resize(k+2) , u [i].resize(k+2) ; 
	
	for ( int i = 1 ; i <= n ; i ++ ) for ( int j = 1 ; j <= k ; j ++ ) cin >> r [i][j] ; 
	for ( int i = 1 ; i <= n ; i ++ ) for ( int j = 1 ; j <= k ; j ++ ) cin >> u [i][j] ; 
	
	for ( int i = 1 ; i <= k ; i ++ ) p [i] = 0 ; 
	
	for ( int j = 1 ; j <= k ; j ++ ) requires[j].resize(n+2) ; 
	for ( int j = 1 ; j <= k ; j ++ ) for ( int i = 1 ; i <= n ; i ++ ) requires [j][i] = {r[i][j],i} ;  
	for ( int j = 1 ; j <= k ; j ++ ) sort (requires[j].begin()+1,requires[j].begin()+n+1,cmp) ; 
	
	for ( int j = 1 ; j <= k ; j ++ ) cur [j] = 1 ; 
	vector<int> update ; 
	for ( int j = 1 ; j <= k ; j ++ ) update . pb (j) ; 
	int res = 0 ; 
	while ( true ) 
	{
		if ( update.empty() ) break ; 
		int x = update.back () ; update.pop_back () ;
		while ( cur [x] <= n && p [x] >= requires[x][cur[x]].fi ) 
		{
			if ( ++ cnt[requires[x][cur[x]].se] == k ) 
			{
				for ( int j = 1 ; j <= k ; j ++ ) p [j] += u [requires[x][cur[x]].se][j] , update . pb (j) ; 
				res ++ ; 
			} 	
			++ cur [x] ; 
		}
	}

	cout << res ; 
}

Compilation message (stderr)

Main.cpp: In function 'void runfile()':
Main.cpp:29:26: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   29 | void runfile() { freopen ("bai1.inp","r",stdin) ; }
      |                  ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 12 / 12
• Subtask 2: 0 / 28
• Subtask 3: 0 / 21
• Subtask 4: 0 / 39