oj.uz

Submission #126634

# Submission time Handle Problem Language Result Execution time Memory
126634 2019-07-08T08:04:08 Z fizzydavid Fortune Telling 2 (JOI14_fortune_telling2) C++14
4 / 100
 3000 ms 1136 KB 
//by yjz
#include<bits/stdc++.h>
#define FF first
#define SS second
#define MP make_pair
#define PB push_back
typedef long long ll;
using namespace std;
const int maxn = 400111;
int n, m;
vector<int> pts;
int getid(int x) {return lower_bound(pts.begin(), pts.end(), x+1)-pts.begin();}
pair<int,int>  p[maxn];
int arr[maxn];
int main()
{
	scanf("%d%d", &n, &m);
	for (int i=1; i<=n; i++)
	{
		scanf("%d%d", &p[i].FF, &p[i].SS);
		pts.PB(p[i].FF);
		pts.PB(p[i].SS);
	}
	sort(pts.begin(), pts.end());
	pts.erase(unique(pts.begin(), pts.end()), pts.end());
	for (int i=1; i<=n; i++) p[i].FF = getid(p[i].FF), p[i].SS = getid(p[i].SS);
	for (int i=1; i<=m; i++)
	{
		scanf("%d", &arr[i]);
		arr[i] = getid(arr[i]);
	}
//	for (int i=1; i<=n; i++) cerr<<p[i].FF<<","<<p[i].SS<<endl;
//	for (int i=1; i<=m; i++) cerr<<arr[i]<<" "; cerr<<endl;
	ll ans = 0;
	for (int i=1; i<=n; i++)
	{
		int x = p[i].FF, y = p[i].SS;
		bool flip = false;
		if (x>y) flip = true, swap(x, y);
		int lst = -1;
		for (int j=1; j<=m; j++)
		{
			if (arr[j]>=x&&arr[j]<y)
			{
				lst = j;
			}
		}
		if (lst==-1)
		{
			for (int j=1; j<=m; j++) flip ^= arr[j]>=y;
		}
		else
		{
			flip = true;
			for (int j=lst+1; j<=m; j++) flip ^= arr[j]>=y;
		}
		if (flip) ans += pts[y-1]; else ans += pts[x-1];
	}
	cout<<ans<<endl;
	return 0;
}
/*
5 3
4 6
9 1
8 8
4 2
3 7
8
2
9
 */

Compilation message

fortune_telling2.cpp: In function 'int main()':
fortune_telling2.cpp:17:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &m);
  ~~~~~^~~~~~~~~~~~~~~~
fortune_telling2.cpp:20:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &p[i].FF, &p[i].SS);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
fortune_telling2.cpp:29:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &arr[i]);
   ~~~~~^~~~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 4 ms 376 KB Output is correct
3 Correct 6 ms 376 KB Output is correct
4 Correct 6 ms 376 KB Output is correct
5 Correct 6 ms 376 KB Output is correct
6 Correct 6 ms 376 KB Output is correct
7 Correct 6 ms 376 KB Output is correct
8 Correct 4 ms 376 KB Output is correct
9 Correct 3 ms 376 KB Output is correct
10 Correct 4 ms 376 KB Output is correct
11 Correct 6 ms 376 KB Output is correct
12 Correct 10 ms 376 KB Output is correct
13 Correct 7 ms 376 KB Output is correct

Subtask #2
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 4 ms 376 KB Output is correct
3 Correct 6 ms 376 KB Output is correct
4 Correct 6 ms 376 KB Output is correct
5 Correct 6 ms 376 KB Output is correct
6 Correct 6 ms 376 KB Output is correct
7 Correct 6 ms 376 KB Output is correct
8 Correct 4 ms 376 KB Output is correct
9 Correct 3 ms 376 KB Output is correct
10 Correct 4 ms 376 KB Output is correct
11 Correct 6 ms 376 KB Output is correct
12 Correct 10 ms 376 KB Output is correct
13 Correct 7 ms 376 KB Output is correct
14 Correct 366 ms 712 KB Output is correct
15 Correct 1436 ms 900 KB Output is correct
16 Execution timed out 3036 ms 1136 KB Time limit exceeded
17 Halted 0 ms 0 KB -

Subtask #3
0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 4 ms 376 KB Output is correct
3 Correct 6 ms 376 KB Output is correct
4 Correct 6 ms 376 KB Output is correct
5 Correct 6 ms 376 KB Output is correct
6 Correct 6 ms 376 KB Output is correct
7 Correct 6 ms 376 KB Output is correct
8 Correct 4 ms 376 KB Output is correct
9 Correct 3 ms 376 KB Output is correct
10 Correct 4 ms 376 KB Output is correct
11 Correct 6 ms 376 KB Output is correct
12 Correct 10 ms 376 KB Output is correct
13 Correct 7 ms 376 KB Output is correct
14 Correct 366 ms 712 KB Output is correct
15 Correct 1436 ms 900 KB Output is correct
16 Execution timed out 3036 ms 1136 KB Time limit exceeded
17 Halted 0 ms 0 KB -