oj.uz

답안 #685073

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
685073 2023-01-23T09:12:12 Z Do_you_copy Lamps (JOI19_lamps) C++17
100 / 100
 55 ms 16008 KB 
//Then
#include <bits/stdc++.h>
#define pb push_back
#define fi first
#define se second
#define faster ios_base::sync_with_stdio(0); cin.tie(0);

using namespace std;
using ll = long long;
using ld = long double;
using pii = pair <int, int>;
mt19937_64 Rand(chrono::steady_clock::now().time_since_epoch().count());
const int maxN = 1e6 + 1;
//const int Mod = 1e9 + 7;
//const int inf =
int n;
int dp[maxN][3];
string a, b;

char conv(char c, int i){
    if (i < 2) return i + '0';
    return c;
}

void Init(){
    cin >> n;
    string a, b;
    cin >> a >> b;
    a = " " + a;
    b = " " + b;
    memset(dp, 0x3f, sizeof(dp));
    dp[0][2] = 0;
    for (int i = 1; i <= n; ++i){
        for (int j = 0; j < 3; ++j){
            for (int k = 0; k < 3; ++k){
                int tem = dp[i - 1][j];
                if (j != k && k < 2) ++tem;
                if ((i == 1 || conv(a[i - 1], j) == b[i - 1]) && conv(a[i], k) != b[i]) ++tem;
                dp[i][k] = min(dp[i][k], tem);
            }
        }
    }
    cout << min({dp[n][0], dp[n][1], dp[n][2]});
}

#define debug
#define taskname "test"
signed main(){
    faster
    if (fopen(taskname".inp", "r")){
        freopen(taskname".inp", "r", stdin);
        freopen(taskname".out", "w", stdout);
    }
    int tt = 1;
    //cin >> tt;
    while (tt--){
        Init();
    }
    if (fopen("timeout.txt", "r")){
        ofstream timeout("timeout.txt");
        timeout << signed(double(clock()) / CLOCKS_PER_SEC * 1000);
        timeout.close();
        #ifndef debug
        cerr << "Time elapsed: " << signed(double(clock()) / CLOCKS_PER_SEC * 1000) << "ms\n";
        #endif // debug
    }
}

Compilation message

lamp.cpp: In function 'int main()':
lamp.cpp:51:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   51 |         freopen(taskname".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
lamp.cpp:52:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   52 |         freopen(taskname".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 11988 KB Output is correct
2 Correct 4 ms 11988 KB Output is correct
3 Correct 5 ms 11988 KB Output is correct
4 Correct 5 ms 11988 KB Output is correct
5 Correct 5 ms 11988 KB Output is correct
6 Correct 4 ms 11988 KB Output is correct
7 Correct 5 ms 11988 KB Output is correct
8 Correct 5 ms 11988 KB Output is correct
9 Correct 5 ms 11988 KB Output is correct
10 Correct 5 ms 12020 KB Output is correct
11 Correct 7 ms 11992 KB Output is correct
12 Correct 5 ms 11988 KB Output is correct
13 Correct 5 ms 11988 KB Output is correct
14 Correct 5 ms 11940 KB Output is correct
15 Correct 5 ms 11988 KB Output is correct
16 Correct 6 ms 12116 KB Output is correct
17 Correct 5 ms 12060 KB Output is correct
18 Correct 5 ms 11988 KB Output is correct
19 Correct 5 ms 11988 KB Output is correct
20 Correct 5 ms 11988 KB Output is correct
21 Correct 5 ms 11988 KB Output is correct
22 Correct 5 ms 11968 KB Output is correct
23 Correct 6 ms 11988 KB Output is correct
24 Correct 5 ms 11988 KB Output is correct
25 Correct 5 ms 11988 KB Output is correct
26 Correct 5 ms 11988 KB Output is correct
27 Correct 5 ms 11960 KB Output is correct
28 Correct 5 ms 11988 KB Output is correct
29 Correct 5 ms 11988 KB Output is correct
30 Correct 5 ms 11988 KB Output is correct
31 Correct 5 ms 11988 KB Output is correct
32 Correct 5 ms 11988 KB Output is correct
33 Correct 5 ms 11988 KB Output is correct
34 Correct 5 ms 11988 KB Output is correct

Subtask #2
41.0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 11988 KB Output is correct
2 Correct 4 ms 11988 KB Output is correct
3 Correct 5 ms 11988 KB Output is correct
4 Correct 5 ms 11988 KB Output is correct
5 Correct 5 ms 11988 KB Output is correct
6 Correct 4 ms 11988 KB Output is correct
7 Correct 5 ms 11988 KB Output is correct
8 Correct 5 ms 11988 KB Output is correct
9 Correct 5 ms 11988 KB Output is correct
10 Correct 5 ms 12020 KB Output is correct
11 Correct 7 ms 11992 KB Output is correct
12 Correct 5 ms 11988 KB Output is correct
13 Correct 5 ms 11988 KB Output is correct
14 Correct 5 ms 11940 KB Output is correct
15 Correct 5 ms 11988 KB Output is correct
16 Correct 6 ms 12116 KB Output is correct
17 Correct 5 ms 12060 KB Output is correct
18 Correct 5 ms 11988 KB Output is correct
19 Correct 5 ms 11988 KB Output is correct
20 Correct 5 ms 11988 KB Output is correct
21 Correct 5 ms 11988 KB Output is correct
22 Correct 5 ms 11968 KB Output is correct
23 Correct 6 ms 11988 KB Output is correct
24 Correct 5 ms 11988 KB Output is correct
25 Correct 5 ms 11988 KB Output is correct
26 Correct 5 ms 11988 KB Output is correct
27 Correct 5 ms 11960 KB Output is correct
28 Correct 5 ms 11988 KB Output is correct
29 Correct 5 ms 11988 KB Output is correct
30 Correct 5 ms 11988 KB Output is correct
31 Correct 5 ms 11988 KB Output is correct
32 Correct 5 ms 11988 KB Output is correct
33 Correct 5 ms 11988 KB Output is correct
34 Correct 5 ms 11988 KB Output is correct
35 Correct 5 ms 11988 KB Output is correct
36 Correct 5 ms 11988 KB Output is correct
37 Correct 5 ms 11976 KB Output is correct
38 Correct 5 ms 12028 KB Output is correct
39 Correct 5 ms 11988 KB Output is correct
40 Correct 5 ms 11988 KB Output is correct
41 Correct 5 ms 11988 KB Output is correct
42 Correct 5 ms 11988 KB Output is correct
43 Correct 5 ms 11988 KB Output is correct
44 Correct 5 ms 11988 KB Output is correct
45 Correct 5 ms 11988 KB Output is correct
46 Correct 5 ms 12048 KB Output is correct
47 Correct 5 ms 11988 KB Output is correct
48 Correct 6 ms 11984 KB Output is correct
49 Correct 5 ms 11988 KB Output is correct
50 Correct 5 ms 11988 KB Output is correct
51 Correct 5 ms 11988 KB Output is correct
52 Correct 5 ms 11988 KB Output is correct
53 Correct 7 ms 11988 KB Output is correct
54 Correct 5 ms 11988 KB Output is correct
55 Correct 5 ms 12036 KB Output is correct
56 Correct 5 ms 11988 KB Output is correct
57 Correct 5 ms 11988 KB Output is correct
58 Correct 5 ms 11988 KB Output is correct

Subtask #3
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 11988 KB Output is correct
2 Correct 5 ms 11988 KB Output is correct
3 Correct 6 ms 12000 KB Output is correct
4 Correct 5 ms 12000 KB Output is correct
5 Correct 5 ms 12000 KB Output is correct
6 Correct 5 ms 12000 KB Output is correct
7 Correct 37 ms 13964 KB Output is correct
8 Correct 37 ms 16008 KB Output is correct
9 Correct 38 ms 15880 KB Output is correct
10 Correct 55 ms 15924 KB Output is correct
11 Correct 35 ms 15888 KB Output is correct
12 Correct 35 ms 15948 KB Output is correct
13 Correct 35 ms 15884 KB Output is correct
14 Correct 41 ms 15952 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 11988 KB Output is correct
2 Correct 4 ms 11988 KB Output is correct
3 Correct 5 ms 11988 KB Output is correct
4 Correct 5 ms 11988 KB Output is correct
5 Correct 5 ms 11988 KB Output is correct
6 Correct 4 ms 11988 KB Output is correct
7 Correct 5 ms 11988 KB Output is correct
8 Correct 5 ms 11988 KB Output is correct
9 Correct 5 ms 11988 KB Output is correct
10 Correct 5 ms 12020 KB Output is correct
11 Correct 7 ms 11992 KB Output is correct
12 Correct 5 ms 11988 KB Output is correct
13 Correct 5 ms 11988 KB Output is correct
14 Correct 5 ms 11940 KB Output is correct
15 Correct 5 ms 11988 KB Output is correct
16 Correct 6 ms 12116 KB Output is correct
17 Correct 5 ms 12060 KB Output is correct
18 Correct 5 ms 11988 KB Output is correct
19 Correct 5 ms 11988 KB Output is correct
20 Correct 5 ms 11988 KB Output is correct
21 Correct 5 ms 11988 KB Output is correct
22 Correct 5 ms 11968 KB Output is correct
23 Correct 6 ms 11988 KB Output is correct
24 Correct 5 ms 11988 KB Output is correct
25 Correct 5 ms 11988 KB Output is correct
26 Correct 5 ms 11988 KB Output is correct
27 Correct 5 ms 11960 KB Output is correct
28 Correct 5 ms 11988 KB Output is correct
29 Correct 5 ms 11988 KB Output is correct
30 Correct 5 ms 11988 KB Output is correct
31 Correct 5 ms 11988 KB Output is correct
32 Correct 5 ms 11988 KB Output is correct
33 Correct 5 ms 11988 KB Output is correct
34 Correct 5 ms 11988 KB Output is correct
35 Correct 5 ms 11988 KB Output is correct
36 Correct 5 ms 11988 KB Output is correct
37 Correct 5 ms 11976 KB Output is correct
38 Correct 5 ms 12028 KB Output is correct
39 Correct 5 ms 11988 KB Output is correct
40 Correct 5 ms 11988 KB Output is correct
41 Correct 5 ms 11988 KB Output is correct
42 Correct 5 ms 11988 KB Output is correct
43 Correct 5 ms 11988 KB Output is correct
44 Correct 5 ms 11988 KB Output is correct
45 Correct 5 ms 11988 KB Output is correct
46 Correct 5 ms 12048 KB Output is correct
47 Correct 5 ms 11988 KB Output is correct
48 Correct 6 ms 11984 KB Output is correct
49 Correct 5 ms 11988 KB Output is correct
50 Correct 5 ms 11988 KB Output is correct
51 Correct 5 ms 11988 KB Output is correct
52 Correct 5 ms 11988 KB Output is correct
53 Correct 7 ms 11988 KB Output is correct
54 Correct 5 ms 11988 KB Output is correct
55 Correct 5 ms 12036 KB Output is correct
56 Correct 5 ms 11988 KB Output is correct
57 Correct 5 ms 11988 KB Output is correct
58 Correct 5 ms 11988 KB Output is correct
59 Correct 5 ms 11988 KB Output is correct
60 Correct 5 ms 11988 KB Output is correct
61 Correct 6 ms 12000 KB Output is correct
62 Correct 5 ms 12000 KB Output is correct
63 Correct 5 ms 12000 KB Output is correct
64 Correct 5 ms 12000 KB Output is correct
65 Correct 37 ms 13964 KB Output is correct
66 Correct 37 ms 16008 KB Output is correct
67 Correct 38 ms 15880 KB Output is correct
68 Correct 55 ms 15924 KB Output is correct
69 Correct 35 ms 15888 KB Output is correct
70 Correct 35 ms 15948 KB Output is correct
71 Correct 35 ms 15884 KB Output is correct
72 Correct 41 ms 15952 KB Output is correct
73 Correct 37 ms 15920 KB Output is correct
74 Correct 36 ms 15880 KB Output is correct
75 Correct 36 ms 15892 KB Output is correct
76 Correct 35 ms 15928 KB Output is correct
77 Correct 35 ms 16000 KB Output is correct
78 Correct 37 ms 16000 KB Output is correct
79 Correct 36 ms 15928 KB Output is correct
80 Correct 33 ms 15948 KB Output is correct
81 Correct 34 ms 15936 KB Output is correct
82 Correct 34 ms 15916 KB Output is correct
83 Correct 52 ms 15888 KB Output is correct
84 Correct 39 ms 15932 KB Output is correct
85 Correct 39 ms 15936 KB Output is correct
86 Correct 38 ms 15944 KB Output is correct
87 Correct 39 ms 15864 KB Output is correct
88 Correct 40 ms 15928 KB Output is correct
89 Correct 39 ms 15928 KB Output is correct
90 Correct 39 ms 15992 KB Output is correct
91 Correct 50 ms 15932 KB Output is correct
92 Correct 43 ms 15944 KB Output is correct
93 Correct 43 ms 15864 KB Output is correct
94 Correct 45 ms 15940 KB Output is correct
95 Correct 46 ms 15900 KB Output is correct
96 Correct 43 ms 15940 KB Output is correct
97 Correct 43 ms 15880 KB Output is correct
98 Correct 44 ms 15948 KB Output is correct
99 Correct 43 ms 15940 KB Output is correct
100 Correct 42 ms 15940 KB Output is correct
101 Correct 44 ms 15928 KB Output is correct
102 Correct 43 ms 15880 KB Output is correct