oj.uz

Submission #624069

# Submission time Handle Problem Language Result Execution time Memory
624069 2022-08-07T07:46:48 Z Loki_Nguyen Lamps (JOI19_lamps) C++14
100 / 100
 74 ms 16176 KB 
#include <bits/stdc++.h>
#define pll pair<ll, ll>
#define fi first
#define se second
#define pb push_back
#define task "tesddt"
#define pii pair<ll, pll>
using namespace std;
using ll = long long;
const int N = 1e6 + 2;
const ll mod = 998244353;
const ll base = 350;
const ll inf = 1e15;
int m, n, t, k, a[N], ans, dp[N][3];
void add(int& x, int y)
{
    if(x == -1 || x > y)x = y;
}
void sol()
{
    string A, B;
    cin >> n >> A >> B;
    memset(dp, -1, sizeof(dp));
    dp[0][0] = 0;
    ans = -1;
    for(int i = 0; i < n; i ++)
    {
        for(int l = 0; l < 3; l ++)
        {
            if(dp[i][l] == -1)continue;
            //cout << i <<" "<<l<<" "<<dp[i][l] << '\n';
            for(int r = 0; r < 3; r ++)
            {
                int cost = 0;
                if(l != r && r > 0)++cost;
                int vl, vr;
                if(r > 0)vr = r-1;
                else vr = A[i]-'0';
                if(vr != B[i]-'0')
                {
                    if(!i)++cost;
                    else 
                    {
                        if(l > 0)vl = l-1;
                        else vl = A[i-1]-'0';
                        if(vl == B[i-1]-'0')++cost;
                    }                    
                }
                //cout << r <<" "<<cost << '\n';
                add(dp[i+1][r], dp[i][l]+cost);
            }
        }
    }
    for(int i = 0; i < 3; i ++)if(dp[n][i] != -1)add(ans, dp[n][i]);
    cout << ans;
}
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    if (fopen(task ".inp", "r"))
    {
        freopen(task ".inp", "r", stdin);
        freopen(task ".out", "w", stdout);
    }
    int ntest = 1;
    // cin >> ntest;
    while (ntest-- > 0)
        sol();
}

Compilation message

lamp.cpp: In function 'int main()':
lamp.cpp:64:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   64 |         freopen(task ".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
lamp.cpp:65:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   65 |         freopen(task ".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 11988 KB Output is correct
2 Correct 5 ms 11988 KB Output is correct
3 Correct 5 ms 11988 KB Output is correct
4 Correct 5 ms 11976 KB Output is correct
5 Correct 7 ms 11972 KB Output is correct
6 Correct 5 ms 11972 KB Output is correct
7 Correct 5 ms 11988 KB Output is correct
8 Correct 5 ms 11988 KB Output is correct
9 Correct 6 ms 11988 KB Output is correct
10 Correct 5 ms 11988 KB Output is correct
11 Correct 5 ms 11988 KB Output is correct
12 Correct 5 ms 11988 KB Output is correct
13 Correct 6 ms 11988 KB Output is correct
14 Correct 7 ms 11988 KB Output is correct
15 Correct 6 ms 11988 KB Output is correct
16 Correct 5 ms 11976 KB Output is correct
17 Correct 6 ms 11976 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 11972 KB Output is correct
21 Correct 5 ms 11988 KB Output is correct
22 Correct 5 ms 11988 KB Output is correct
23 Correct 5 ms 11976 KB Output is correct
24 Correct 6 ms 12060 KB Output is correct
25 Correct 5 ms 11988 KB Output is correct
26 Correct 4 ms 11988 KB Output is correct
27 Correct 6 ms 11976 KB Output is correct
28 Correct 7 ms 11988 KB Output is correct
29 Correct 6 ms 11988 KB Output is correct
30 Correct 7 ms 11976 KB Output is correct
31 Correct 5 ms 11972 KB Output is correct
32 Correct 6 ms 11988 KB Output is correct
33 Correct 6 ms 11988 KB Output is correct
34 Correct 5 ms 11968 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 11988 KB Output is correct
2 Correct 5 ms 11988 KB Output is correct
3 Correct 5 ms 11988 KB Output is correct
4 Correct 5 ms 11976 KB Output is correct
5 Correct 7 ms 11972 KB Output is correct
6 Correct 5 ms 11972 KB Output is correct
7 Correct 5 ms 11988 KB Output is correct
8 Correct 5 ms 11988 KB Output is correct
9 Correct 6 ms 11988 KB Output is correct
10 Correct 5 ms 11988 KB Output is correct
11 Correct 5 ms 11988 KB Output is correct
12 Correct 5 ms 11988 KB Output is correct
13 Correct 6 ms 11988 KB Output is correct
14 Correct 7 ms 11988 KB Output is correct
15 Correct 6 ms 11988 KB Output is correct
16 Correct 5 ms 11976 KB Output is correct
17 Correct 6 ms 11976 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 11972 KB Output is correct
21 Correct 5 ms 11988 KB Output is correct
22 Correct 5 ms 11988 KB Output is correct
23 Correct 5 ms 11976 KB Output is correct
24 Correct 6 ms 12060 KB Output is correct
25 Correct 5 ms 11988 KB Output is correct
26 Correct 4 ms 11988 KB Output is correct
27 Correct 6 ms 11976 KB Output is correct
28 Correct 7 ms 11988 KB Output is correct
29 Correct 6 ms 11988 KB Output is correct
30 Correct 7 ms 11976 KB Output is correct
31 Correct 5 ms 11972 KB Output is correct
32 Correct 6 ms 11988 KB Output is correct
33 Correct 6 ms 11988 KB Output is correct
34 Correct 5 ms 11968 KB Output is correct
35 Correct 5 ms 11976 KB Output is correct
36 Correct 6 ms 11988 KB Output is correct
37 Correct 5 ms 11988 KB Output is correct
38 Correct 5 ms 11988 KB Output is correct
39 Correct 6 ms 11988 KB Output is correct
40 Correct 5 ms 11988 KB Output is correct
41 Correct 5 ms 12104 KB Output is correct
42 Correct 6 ms 12004 KB Output is correct
43 Correct 5 ms 11976 KB Output is correct
44 Correct 5 ms 11988 KB Output is correct
45 Correct 5 ms 11988 KB Output is correct
46 Correct 6 ms 11980 KB Output is correct
47 Correct 5 ms 11988 KB Output is correct
48 Correct 5 ms 11988 KB Output is correct
49 Correct 7 ms 12116 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 5 ms 11988 KB Output is correct
54 Correct 6 ms 11988 KB Output is correct
55 Correct 5 ms 11988 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 11976 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 11988 KB Output is correct
2 Correct 5 ms 11972 KB Output is correct
3 Correct 5 ms 11968 KB Output is correct
4 Correct 5 ms 11972 KB Output is correct
5 Correct 5 ms 11976 KB Output is correct
6 Correct 5 ms 11988 KB Output is correct
7 Correct 53 ms 16032 KB Output is correct
8 Correct 53 ms 16112 KB Output is correct
9 Correct 42 ms 16104 KB Output is correct
10 Correct 44 ms 16080 KB Output is correct
11 Correct 43 ms 16104 KB Output is correct
12 Correct 48 ms 16044 KB Output is correct
13 Correct 47 ms 16108 KB Output is correct
14 Correct 43 ms 16052 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 11988 KB Output is correct
2 Correct 5 ms 11988 KB Output is correct
3 Correct 5 ms 11988 KB Output is correct
4 Correct 5 ms 11976 KB Output is correct
5 Correct 7 ms 11972 KB Output is correct
6 Correct 5 ms 11972 KB Output is correct
7 Correct 5 ms 11988 KB Output is correct
8 Correct 5 ms 11988 KB Output is correct
9 Correct 6 ms 11988 KB Output is correct
10 Correct 5 ms 11988 KB Output is correct
11 Correct 5 ms 11988 KB Output is correct
12 Correct 5 ms 11988 KB Output is correct
13 Correct 6 ms 11988 KB Output is correct
14 Correct 7 ms 11988 KB Output is correct
15 Correct 6 ms 11988 KB Output is correct
16 Correct 5 ms 11976 KB Output is correct
17 Correct 6 ms 11976 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 11972 KB Output is correct
21 Correct 5 ms 11988 KB Output is correct
22 Correct 5 ms 11988 KB Output is correct
23 Correct 5 ms 11976 KB Output is correct
24 Correct 6 ms 12060 KB Output is correct
25 Correct 5 ms 11988 KB Output is correct
26 Correct 4 ms 11988 KB Output is correct
27 Correct 6 ms 11976 KB Output is correct
28 Correct 7 ms 11988 KB Output is correct
29 Correct 6 ms 11988 KB Output is correct
30 Correct 7 ms 11976 KB Output is correct
31 Correct 5 ms 11972 KB Output is correct
32 Correct 6 ms 11988 KB Output is correct
33 Correct 6 ms 11988 KB Output is correct
34 Correct 5 ms 11968 KB Output is correct
35 Correct 5 ms 11976 KB Output is correct
36 Correct 6 ms 11988 KB Output is correct
37 Correct 5 ms 11988 KB Output is correct
38 Correct 5 ms 11988 KB Output is correct
39 Correct 6 ms 11988 KB Output is correct
40 Correct 5 ms 11988 KB Output is correct
41 Correct 5 ms 12104 KB Output is correct
42 Correct 6 ms 12004 KB Output is correct
43 Correct 5 ms 11976 KB Output is correct
44 Correct 5 ms 11988 KB Output is correct
45 Correct 5 ms 11988 KB Output is correct
46 Correct 6 ms 11980 KB Output is correct
47 Correct 5 ms 11988 KB Output is correct
48 Correct 5 ms 11988 KB Output is correct
49 Correct 7 ms 12116 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 5 ms 11988 KB Output is correct
54 Correct 6 ms 11988 KB Output is correct
55 Correct 5 ms 11988 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 11976 KB Output is correct
59 Correct 5 ms 11988 KB Output is correct
60 Correct 5 ms 11972 KB Output is correct
61 Correct 5 ms 11968 KB Output is correct
62 Correct 5 ms 11972 KB Output is correct
63 Correct 5 ms 11976 KB Output is correct
64 Correct 5 ms 11988 KB Output is correct
65 Correct 53 ms 16032 KB Output is correct
66 Correct 53 ms 16112 KB Output is correct
67 Correct 42 ms 16104 KB Output is correct
68 Correct 44 ms 16080 KB Output is correct
69 Correct 43 ms 16104 KB Output is correct
70 Correct 48 ms 16044 KB Output is correct
71 Correct 47 ms 16108 KB Output is correct
72 Correct 43 ms 16052 KB Output is correct
73 Correct 40 ms 16108 KB Output is correct
74 Correct 43 ms 16136 KB Output is correct
75 Correct 44 ms 16092 KB Output is correct
76 Correct 47 ms 16176 KB Output is correct
77 Correct 45 ms 16040 KB Output is correct
78 Correct 42 ms 16108 KB Output is correct
79 Correct 41 ms 16040 KB Output is correct
80 Correct 43 ms 16040 KB Output is correct
81 Correct 46 ms 16044 KB Output is correct
82 Correct 41 ms 16024 KB Output is correct
83 Correct 52 ms 15996 KB Output is correct
84 Correct 47 ms 16108 KB Output is correct
85 Correct 45 ms 16112 KB Output is correct
86 Correct 45 ms 16112 KB Output is correct
87 Correct 53 ms 16112 KB Output is correct
88 Correct 47 ms 16116 KB Output is correct
89 Correct 50 ms 16108 KB Output is correct
90 Correct 52 ms 16156 KB Output is correct
91 Correct 54 ms 16044 KB Output is correct
92 Correct 56 ms 16072 KB Output is correct
93 Correct 58 ms 16124 KB Output is correct
94 Correct 58 ms 16040 KB Output is correct
95 Correct 58 ms 16108 KB Output is correct
96 Correct 59 ms 16116 KB Output is correct
97 Correct 56 ms 16044 KB Output is correct
98 Correct 56 ms 16072 KB Output is correct
99 Correct 59 ms 16112 KB Output is correct
100 Correct 58 ms 16112 KB Output is correct
101 Correct 74 ms 16088 KB Output is correct
102 Correct 62 ms 16132 KB Output is correct