oj.uz

Submission #97616

# Submission time Handle Problem Language Result Execution time Memory
97616 2019-02-17T13:48:49 Z maruii Exhibition (JOI19_ho_t2) C++14
0 / 100
 3 ms 384 KB 
#include <bits/stdc++.h>
using namespace std;
using pii = pair<int, int>;
int N, M, C[100000], cnt;
pii A[100000], lis[100000];
int main(){
	scanf("%d%d",&N,&M);
	for(int i=0; i<N; ++i) scanf("%d%d",&A[i].first,&A[i].second);
	for(int i=0; i<M; ++i) scanf("%d",C+i);
	sort(C, C+M), sort(A, A+N);
	for(int i=0; i<N; ++i){
		int t = upper_bound(lis, lis+cnt, A[i], [&](pii a, pii b){return a.second<b.second;})-lis;
		if(cnt==t) lis[cnt++] = A[i];
		else lis[t] = A[i];
	}
	int ans=0;
	for(int i=0; i<M && ans<N; ++i) if(C[i]>=lis[ans].first) ++ans;
	printf("%d",ans);
	return 0;
}

Compilation message

joi2019_ho_t3.cpp: In function 'int main()':
joi2019_ho_t3.cpp:7:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&N,&M);
  ~~~~~^~~~~~~~~~~~~~
joi2019_ho_t3.cpp:8:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=0; i<N; ++i) scanf("%d%d",&A[i].first,&A[i].second);
                         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:9:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=0; i<M; ++i) scanf("%d",C+i);
                         ~~~~~^~~~~~~~~~

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Incorrect 2 ms 256 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Incorrect 2 ms 256 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Incorrect 2 ms 256 KB Output isn't correct
5 Halted 0 ms 0 KB -