oj.uz

Submission #298931

# Submission time Handle Problem Language Result Execution time Memory
298931 2020-09-14T10:51:31 Z toloraia Monochrome Points (JOI20_monochrome) C++14
35 / 100
 2000 ms 7040 KB 
#include <bits/stdc++.h>
#define F first
#define S second
#define mp make_pair
#define pb push_back
//#define ll __int128
#define ll long long
#define int long long
#define LEFT(a) ((a)<<1)
#define RIGHT(a) (LEFT(a) + 1)
#define MID(a,b) ((a+b)>>1)
#define MAX(a,b) ((a)>(b)?(a):(b))
#define MIN(a,b) ((a)<(b)?(a):(b))
#define y1 y122
/*
#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#pragma GCC optimization ("unroll-loops")
/*
#pragma GCC optimize ("O3")
#pragma GCC optimize("Ofast")

#pragma GCC target("avx2,fma")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#pragma GCC target ("avx2")
#pragma GCC optimization ("unroll-loops")

#pragma comment(linker, "/STACK: 20000000005")
*/

using namespace std;

const int N = 200005;

int n;
int F[N];

void upd (int x){
    for (; x <= n; x += x&-x)
        F[x]++;
}

int dat (int x){
    int ans = 0;
    for (; x > 0; x &= x-1)
        ans += F[x];
    return ans;
}

int ANS, ans, a[N];
string S;
vector < int > V[2];


main()
{
    //freopen ("in.in", "r", stdin);freopen ("out.out", "w", stdout);
    ios_base::sync_with_stdio(0);
    cin >> n >> S;
    S = S + S;
    for (int st = 0; st < n*2; st++){
        for (int i = 1; i <= n; i++){
            char ch=S[i+st-1];
            if (ch == 'B')
                a[i] = 1;
            else
                a[i] = 0;
        }
        for (int i = 1; i <= n; i++){
            char ch = S[i+st+n-1];
            if (ch == 'W')
                V[1].pb (i);
            else
                V[0].pb (i);
        }
        for (int i = n; i >= 1; i--){
            int x = V[a[i]].back();
            V[a[i]].pop_back ();
            ans += dat (n) - dat (x);
            upd (x);
        }
        ANS = max (ans, ANS);
        ans = 0;
        for (int i = 1; i <= n; i++)
            F[i] = 0;
        V[0].clear();
        V[1].clear();
    }
    cout << ANS << endl;
}

Compilation message

monochrome.cpp:19:1: warning: "/*" within comment [-Wcomment]
   19 | /*
      |  
monochrome.cpp:55:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   55 | main()
      |      ^

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 392 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 392 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 6 ms 384 KB Output is correct
15 Correct 6 ms 384 KB Output is correct
16 Correct 6 ms 384 KB Output is correct
17 Correct 6 ms 384 KB Output is correct
18 Correct 3 ms 384 KB Output is correct
19 Correct 4 ms 384 KB Output is correct
20 Correct 4 ms 384 KB Output is correct
21 Correct 4 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 3 ms 384 KB Output is correct
24 Correct 4 ms 384 KB Output is correct
25 Correct 4 ms 384 KB Output is correct
26 Correct 4 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 4 ms 384 KB Output is correct
30 Correct 4 ms 384 KB Output is correct
31 Correct 4 ms 384 KB Output is correct
32 Correct 4 ms 384 KB Output is correct
33 Correct 4 ms 384 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 392 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 6 ms 384 KB Output is correct
15 Correct 6 ms 384 KB Output is correct
16 Correct 6 ms 384 KB Output is correct
17 Correct 6 ms 384 KB Output is correct
18 Correct 3 ms 384 KB Output is correct
19 Correct 4 ms 384 KB Output is correct
20 Correct 4 ms 384 KB Output is correct
21 Correct 4 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 3 ms 384 KB Output is correct
24 Correct 4 ms 384 KB Output is correct
25 Correct 4 ms 384 KB Output is correct
26 Correct 4 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 4 ms 384 KB Output is correct
30 Correct 4 ms 384 KB Output is correct
31 Correct 4 ms 384 KB Output is correct
32 Correct 4 ms 384 KB Output is correct
33 Correct 4 ms 384 KB Output is correct
34 Correct 288 ms 488 KB Output is correct
35 Correct 301 ms 504 KB Output is correct
36 Correct 275 ms 468 KB Output is correct
37 Correct 248 ms 384 KB Output is correct
38 Correct 170 ms 504 KB Output is correct
39 Correct 192 ms 384 KB Output is correct
40 Correct 186 ms 384 KB Output is correct
41 Correct 165 ms 464 KB Output is correct
42 Correct 289 ms 500 KB Output is correct
43 Correct 244 ms 480 KB Output is correct
44 Correct 220 ms 384 KB Output is correct
45 Correct 203 ms 384 KB Output is correct
46 Correct 227 ms 384 KB Output is correct
47 Correct 212 ms 384 KB Output is correct
48 Correct 205 ms 484 KB Output is correct
49 Correct 169 ms 384 KB Output is correct
50 Correct 196 ms 384 KB Output is correct
51 Correct 198 ms 492 KB Output is correct
52 Correct 202 ms 384 KB Output is correct

Subtask #4
0.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 392 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 6 ms 384 KB Output is correct
15 Correct 6 ms 384 KB Output is correct
16 Correct 6 ms 384 KB Output is correct
17 Correct 6 ms 384 KB Output is correct
18 Correct 3 ms 384 KB Output is correct
19 Correct 4 ms 384 KB Output is correct
20 Correct 4 ms 384 KB Output is correct
21 Correct 4 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 3 ms 384 KB Output is correct
24 Correct 4 ms 384 KB Output is correct
25 Correct 4 ms 384 KB Output is correct
26 Correct 4 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 4 ms 384 KB Output is correct
30 Correct 4 ms 384 KB Output is correct
31 Correct 4 ms 384 KB Output is correct
32 Correct 4 ms 384 KB Output is correct
33 Correct 4 ms 384 KB Output is correct
34 Correct 288 ms 488 KB Output is correct
35 Correct 301 ms 504 KB Output is correct
36 Correct 275 ms 468 KB Output is correct
37 Correct 248 ms 384 KB Output is correct
38 Correct 170 ms 504 KB Output is correct
39 Correct 192 ms 384 KB Output is correct
40 Correct 186 ms 384 KB Output is correct
41 Correct 165 ms 464 KB Output is correct
42 Correct 289 ms 500 KB Output is correct
43 Correct 244 ms 480 KB Output is correct
44 Correct 220 ms 384 KB Output is correct
45 Correct 203 ms 384 KB Output is correct
46 Correct 227 ms 384 KB Output is correct
47 Correct 212 ms 384 KB Output is correct
48 Correct 205 ms 484 KB Output is correct
49 Correct 169 ms 384 KB Output is correct
50 Correct 196 ms 384 KB Output is correct
51 Correct 198 ms 492 KB Output is correct
52 Correct 202 ms 384 KB Output is correct
53 Execution timed out 2019 ms 7040 KB Time limit exceeded
54 Halted 0 ms 0 KB -