답안 #191331

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
191331	2020-01-14T16:52:14 Z	mrtsima22	Lightning Rod (NOI18_lightningrod)	C++17	80 / 100	2000 ms	80016 KB

lightningrod

#pragma GCC optimize "-O3"
#pragma GCC optimize("Ofast")
#pragma GCC optimization ("unroll-loops")
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define two pair<int,int>
#define pb push_front
#define f first
#define s second
#define sz(container) (int)(container.size())
inline int bin(int &x){
	x=0;
	char ch=getchar();
	while (ch<'0'||ch>'9') ch=getchar();
	while (ch>='0'&&ch<='9') x=(x<<3)+(x<<1)+ch-'0',ch=getchar();
	return x;
}
int n,x,y;
deque<two>st;
int main(){
bin(n);
while(n--){
	bin(x);
	y=bin(y);
	bool ok=1;
	while(!st.empty()){
		int a=st.front().f;
		int b=st.front().s;
		if(x-a<=b-y){
			ok=0;
			break;
		}
		if(x-a<=y-b){
			st.pop_front();
		}else{
			break;
		}
	}
	if(ok){
		st.pb({x,y});
	}
}
printf("%d\n",sz(st));

	// you should actually read the stuff at the bottom
}
/* stuff you should look for
	* int overflow, array bounds
	* special cases (n=1?), slow multiset operations
	* do smth instead of nothing and stay organized
	* unordered_map, hash_map, scanf, calculate answer instead of ans*K
*/
/*


                   *         *
                  * *       * *
                 *   *     *   *
                *     *   *     *
                 *   *   * *   *
                  *   *   *   *
                   *   * *   *
                     *  *   *
					   *  *


*/

Compilation message

lightningrod.cpp:3:0: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
 #pragma GCC optimization ("unroll-loops")

Subtask #1

4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1737 ms	80016 KB	Output is correct
2	Correct	1726 ms	79548 KB	Output is correct
3	Correct	1679 ms	77520 KB	Output is correct

Subtask #2

7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	256 KB	Output is correct
3	Correct	2 ms	256 KB	Output is correct
4	Correct	4 ms	376 KB	Output is correct
5	Correct	2 ms	252 KB	Output is correct
6	Correct	2 ms	256 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct

Subtask #3

12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	256 KB	Output is correct
3	Correct	2 ms	256 KB	Output is correct
4	Correct	4 ms	376 KB	Output is correct
5	Correct	2 ms	252 KB	Output is correct
6	Correct	2 ms	256 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	256 KB	Output is correct
9	Correct	0 ms	376 KB	Output is correct
10	Correct	2 ms	256 KB	Output is correct

Subtask #4

21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	256 KB	Output is correct
3	Correct	2 ms	256 KB	Output is correct
4	Correct	4 ms	376 KB	Output is correct
5	Correct	2 ms	252 KB	Output is correct
6	Correct	2 ms	256 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	256 KB	Output is correct
9	Correct	0 ms	376 KB	Output is correct
10	Correct	2 ms	256 KB	Output is correct
11	Correct	2 ms	256 KB	Output is correct
12	Correct	2 ms	252 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct

Subtask #5

26.0 / 26.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	256 KB	Output is correct
3	Correct	2 ms	256 KB	Output is correct
4	Correct	4 ms	376 KB	Output is correct
5	Correct	2 ms	252 KB	Output is correct
6	Correct	2 ms	256 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	256 KB	Output is correct
9	Correct	0 ms	376 KB	Output is correct
10	Correct	2 ms	256 KB	Output is correct
11	Correct	2 ms	256 KB	Output is correct
12	Correct	2 ms	252 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	53 ms	256 KB	Output is correct
15	Correct	50 ms	360 KB	Output is correct
16	Correct	45 ms	1016 KB	Output is correct

Subtask #6

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1530 ms	51356 KB	Output is correct
2	Correct	1518 ms	51620 KB	Output is correct
3	Correct	1587 ms	50016 KB	Output is correct

Subtask #7

0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1737 ms	80016 KB	Output is correct
2	Correct	1726 ms	79548 KB	Output is correct
3	Correct	1679 ms	77520 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	256 KB	Output is correct
6	Correct	2 ms	256 KB	Output is correct
7	Correct	4 ms	376 KB	Output is correct
8	Correct	2 ms	252 KB	Output is correct
9	Correct	2 ms	256 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	2 ms	256 KB	Output is correct
12	Correct	0 ms	376 KB	Output is correct
13	Correct	2 ms	256 KB	Output is correct
14	Correct	2 ms	256 KB	Output is correct
15	Correct	2 ms	252 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	53 ms	256 KB	Output is correct
18	Correct	50 ms	360 KB	Output is correct
19	Correct	45 ms	1016 KB	Output is correct
20	Correct	1530 ms	51356 KB	Output is correct
21	Correct	1518 ms	51620 KB	Output is correct
22	Correct	1587 ms	50016 KB	Output is correct
23	Execution timed out	2016 ms	3688 KB	Time limit exceeded
24	Halted	0 ms	0 KB	-