답안 #395549

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
395549	2021-04-28T13:31:56 Z	Qw3rTy	Global Warming (CEOI18_glo)	C++11	15 / 100	2000 ms	1228 KB

glo

#include <bits/stdc++.h>
#define INF 1e9+5
using namespace std;

const int maxN = 1e5+5;

int a[maxN];
int b[maxN];
int f[maxN]; //f[i] = longest decreasing subsequence of b that ends on N+1-i
int g[maxN]; //g[i] = longest increasing subsequence of a that ends on i
int N,d;

void testIO(){
    freopen("../test.in","r",stdin);
    return;
}

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    //testIO();
    cin >> N >> d;
    for(int i = 1; i <= N; ++i)cin >> a[i];
    for(int i = 1; i <= N; ++i)b[i] = a[N+1-i];
    b[0] = INF;
    for(int i = 1; i <= N; ++i){
        for(int j = 0; j < i; ++j){
            if(b[i] < b[j])f[i] = max(f[i],f[j]+1);
        }
    }
    a[0] = -INF;
    for(int i = 1; i <= N; ++i){
        for(int j = 0; j < i; ++j){
            if(a[i] > a[j])g[i] = max(g[i],g[j]+1);
        }
    }
    int res = 0;
    for(int i = 1; i <= N; ++i){
        if(a[i-1] - d < a[i])res = max(res, g[i-1] + f[N+1-i]);
    }
    cout << res << '\n';
    return 0;
}

Compilation message

glo.cpp: In function 'void testIO()':
glo.cpp:14:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   14 |     freopen("../test.in","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1

5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	1 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct

Subtask #2

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	1 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	336 KB	Output is correct
17	Correct	1 ms	332 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct

Subtask #3

0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	1 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	336 KB	Output is correct
17	Correct	1 ms	332 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	4 ms	332 KB	Output is correct
20	Incorrect	4 ms	332 KB	Output isn't correct
21	Halted	0 ms	0 KB	-

Subtask #4

0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Runtime error	12 ms	1228 KB	Execution killed with signal 11
2	Halted	0 ms	0 KB	-

Subtask #5

0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Execution timed out	2065 ms	888 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #6

0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Execution timed out	2071 ms	1208 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #7

0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	1 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	1 ms	332 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	1 ms	336 KB	Output is correct
17	Correct	1 ms	332 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	4 ms	332 KB	Output is correct
20	Incorrect	4 ms	332 KB	Output isn't correct
21	Halted	0 ms	0 KB	-