Submission #136750

#	Time	Username	Problem	Language	Result	Execution time	Memory
136750		ekrem	Exhibition (JOI19_ho_t2)	C++98	0 / 100	2 ms	376 KiB

joi2019_ho_t2

#include <bits/stdc++.h>
#define st first
#define nd second
#define mp make_pair
#define pb push_back
#define coc g[node][i]
#define sol (k+k)
#define sag (k+k+1)
#define orta ((bas+son)>>1)
#define mod 1000000007
#define inf 1000000009
#define N 1000005

using namespace std;

typedef long long ll;
typedef pair < int , int > ii;

int n, m, ind = 1, k, a[N], c[N];
ii b[N];
multiset < int > s;

int main(){
	// freopen("in.txt", "r", stdin);
	// freopen("out.txt", "w", stdout);
	scanf("%d %d",&n ,&m);
	for(int i = 1; i <= n; i++)
		scanf("%d %d",&b[i].st ,&b[i].nd);
	sort(b + 1, b + n + 1);
	for(int i = 1; i <= m; i++)
		scanf("%d",a + i);
	sort(a + 1, a + m + 1);
	for(int i = 1; i <= m; i++){
		while(ind <= n and b[ind].st <= a[i]){
			s.insert(b[ind].nd);
			ind++;
		}
		if(!s.empty()){
			int ek = *s.begin();
			int ind = upper_bound(c + 1, c + k + 1, ek) - c;
			// cout << ek << " " << ind << endl;
			if(ind > k)
				k++;
			c[ind] = ek;
			s.erase(s.find(ek));
		}
	}
	printf("%d\n", k);
	return 0;
}

Compilation message (stderr)

joi2019_ho_t2.cpp: In function 'int main()':
joi2019_ho_t2.cpp:26:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d",&n ,&m);
  ~~~~~^~~~~~~~~~~~~~~~
joi2019_ho_t2.cpp:28:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d",&b[i].st ,&b[i].nd);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
joi2019_ho_t2.cpp:31:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",a + i);
   ~~~~~^~~~~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 40
• Subtask 3: 0 / 50