oj.uz

Submission #427241

# Submission time Handle Problem Language Result Execution time Memory
427241 2021-06-14T13:41:14 Z cpp219 Lamps (JOI19_lamps) C++14
100 / 100
 214 ms 145200 KB 
#pragma GCC optimization "O2"
#pragma GCC optimization "unroll-loop"
#pragma GCC target ("avx2")

#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define fs first
#define sc second
using namespace std;
const ll N = 1e6 + 9;
const ll inf = 1e9 + 7;
const ll Log2 = 20;
typedef pair<ll,ll> LL;

string s,p;
ll n,dp[N][3][2];

ll convert(ll now,ll zo,ll flip){
    if (zo == 1) now = 0;
    if (zo == 2) now = 1;
    if (flip) now = 1 - now;
    return now;
}

ll f(ll pos,ll zo,ll flip){
    if (pos > n) return 0;
    if (dp[pos][zo][flip] != -1) return dp[pos][zo][flip];
    ll now = s[pos] - '0',ans = inf;
    for (ll i = 0;i < 3;i++)
        for (ll j = 0;j < 2;j++){
            ll cur = convert(now,i,j),cost = 0;
            if (i && i != zo) cost++;
            if (j && j != flip) cost++;
            if (cur == p[pos] - '0') ans = min(ans,cost + f(pos + 1,i,j));
        }
    return dp[pos][zo][flip] = ans;
}

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0), cout.tie(0);
    #define task "tst"
    if (fopen(task".inp", "r")){
        freopen(task".inp", "r", stdin);
        //freopen(task".out", "w", stdout);
    }
    cin>>n>>s>>p; s = " " + s; p = " " + p;
    memset(dp,-1,sizeof(dp));
    cout<<f(1,0,0);
}

Compilation message

lamp.cpp:1: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    1 | #pragma GCC optimization "O2"
      | 
lamp.cpp:2: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    2 | #pragma GCC optimization "unroll-loop"
      | 
lamp.cpp: In function 'int main()':
lamp.cpp:45:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   45 |         freopen(task".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 47308 KB Output is correct
2 Correct 21 ms 47228 KB Output is correct
3 Correct 20 ms 47180 KB Output is correct
4 Correct 20 ms 47196 KB Output is correct
5 Correct 20 ms 47200 KB Output is correct
6 Correct 20 ms 47164 KB Output is correct
7 Correct 20 ms 47204 KB Output is correct
8 Correct 23 ms 47148 KB Output is correct
9 Correct 21 ms 47176 KB Output is correct
10 Correct 22 ms 47328 KB Output is correct
11 Correct 21 ms 47212 KB Output is correct
12 Correct 22 ms 47180 KB Output is correct
13 Correct 23 ms 47164 KB Output is correct
14 Correct 21 ms 47180 KB Output is correct
15 Correct 21 ms 47192 KB Output is correct
16 Correct 24 ms 47260 KB Output is correct
17 Correct 22 ms 47168 KB Output is correct
18 Correct 21 ms 47180 KB Output is correct
19 Correct 20 ms 47236 KB Output is correct
20 Correct 21 ms 47220 KB Output is correct
21 Correct 20 ms 47256 KB Output is correct
22 Correct 21 ms 47180 KB Output is correct
23 Correct 21 ms 47180 KB Output is correct
24 Correct 21 ms 47180 KB Output is correct
25 Correct 20 ms 47180 KB Output is correct
26 Correct 21 ms 47204 KB Output is correct
27 Correct 21 ms 47244 KB Output is correct
28 Correct 20 ms 47180 KB Output is correct
29 Correct 22 ms 47232 KB Output is correct
30 Correct 23 ms 47180 KB Output is correct
31 Correct 22 ms 47172 KB Output is correct
32 Correct 21 ms 47200 KB Output is correct
33 Correct 23 ms 47236 KB Output is correct
34 Correct 24 ms 47188 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 47308 KB Output is correct
2 Correct 21 ms 47228 KB Output is correct
3 Correct 20 ms 47180 KB Output is correct
4 Correct 20 ms 47196 KB Output is correct
5 Correct 20 ms 47200 KB Output is correct
6 Correct 20 ms 47164 KB Output is correct
7 Correct 20 ms 47204 KB Output is correct
8 Correct 23 ms 47148 KB Output is correct
9 Correct 21 ms 47176 KB Output is correct
10 Correct 22 ms 47328 KB Output is correct
11 Correct 21 ms 47212 KB Output is correct
12 Correct 22 ms 47180 KB Output is correct
13 Correct 23 ms 47164 KB Output is correct
14 Correct 21 ms 47180 KB Output is correct
15 Correct 21 ms 47192 KB Output is correct
16 Correct 24 ms 47260 KB Output is correct
17 Correct 22 ms 47168 KB Output is correct
18 Correct 21 ms 47180 KB Output is correct
19 Correct 20 ms 47236 KB Output is correct
20 Correct 21 ms 47220 KB Output is correct
21 Correct 20 ms 47256 KB Output is correct
22 Correct 21 ms 47180 KB Output is correct
23 Correct 21 ms 47180 KB Output is correct
24 Correct 21 ms 47180 KB Output is correct
25 Correct 20 ms 47180 KB Output is correct
26 Correct 21 ms 47204 KB Output is correct
27 Correct 21 ms 47244 KB Output is correct
28 Correct 20 ms 47180 KB Output is correct
29 Correct 22 ms 47232 KB Output is correct
30 Correct 23 ms 47180 KB Output is correct
31 Correct 22 ms 47172 KB Output is correct
32 Correct 21 ms 47200 KB Output is correct
33 Correct 23 ms 47236 KB Output is correct
34 Correct 24 ms 47188 KB Output is correct
35 Correct 20 ms 47428 KB Output is correct
36 Correct 22 ms 47376 KB Output is correct
37 Correct 23 ms 47456 KB Output is correct
38 Correct 21 ms 47456 KB Output is correct
39 Correct 20 ms 47436 KB Output is correct
40 Correct 22 ms 47436 KB Output is correct
41 Correct 22 ms 47392 KB Output is correct
42 Correct 21 ms 47428 KB Output is correct
43 Correct 21 ms 47388 KB Output is correct
44 Correct 22 ms 47436 KB Output is correct
45 Correct 22 ms 47400 KB Output is correct
46 Correct 21 ms 47436 KB Output is correct
47 Correct 21 ms 47436 KB Output is correct
48 Correct 21 ms 47440 KB Output is correct
49 Correct 22 ms 47472 KB Output is correct
50 Correct 22 ms 47352 KB Output is correct
51 Correct 22 ms 47440 KB Output is correct
52 Correct 22 ms 47436 KB Output is correct
53 Correct 21 ms 47428 KB Output is correct
54 Correct 21 ms 47436 KB Output is correct
55 Correct 20 ms 47424 KB Output is correct
56 Correct 21 ms 47436 KB Output is correct
57 Correct 21 ms 47400 KB Output is correct
58 Correct 23 ms 47372 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 47200 KB Output is correct
2 Correct 25 ms 47164 KB Output is correct
3 Correct 21 ms 47256 KB Output is correct
4 Correct 23 ms 47216 KB Output is correct
5 Correct 25 ms 47180 KB Output is correct
6 Correct 23 ms 47176 KB Output is correct
7 Correct 150 ms 145076 KB Output is correct
8 Correct 176 ms 145052 KB Output is correct
9 Correct 152 ms 145008 KB Output is correct
10 Correct 158 ms 145080 KB Output is correct
11 Correct 150 ms 144996 KB Output is correct
12 Correct 150 ms 145072 KB Output is correct
13 Correct 174 ms 145028 KB Output is correct
14 Correct 156 ms 145092 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 47308 KB Output is correct
2 Correct 21 ms 47228 KB Output is correct
3 Correct 20 ms 47180 KB Output is correct
4 Correct 20 ms 47196 KB Output is correct
5 Correct 20 ms 47200 KB Output is correct
6 Correct 20 ms 47164 KB Output is correct
7 Correct 20 ms 47204 KB Output is correct
8 Correct 23 ms 47148 KB Output is correct
9 Correct 21 ms 47176 KB Output is correct
10 Correct 22 ms 47328 KB Output is correct
11 Correct 21 ms 47212 KB Output is correct
12 Correct 22 ms 47180 KB Output is correct
13 Correct 23 ms 47164 KB Output is correct
14 Correct 21 ms 47180 KB Output is correct
15 Correct 21 ms 47192 KB Output is correct
16 Correct 24 ms 47260 KB Output is correct
17 Correct 22 ms 47168 KB Output is correct
18 Correct 21 ms 47180 KB Output is correct
19 Correct 20 ms 47236 KB Output is correct
20 Correct 21 ms 47220 KB Output is correct
21 Correct 20 ms 47256 KB Output is correct
22 Correct 21 ms 47180 KB Output is correct
23 Correct 21 ms 47180 KB Output is correct
24 Correct 21 ms 47180 KB Output is correct
25 Correct 20 ms 47180 KB Output is correct
26 Correct 21 ms 47204 KB Output is correct
27 Correct 21 ms 47244 KB Output is correct
28 Correct 20 ms 47180 KB Output is correct
29 Correct 22 ms 47232 KB Output is correct
30 Correct 23 ms 47180 KB Output is correct
31 Correct 22 ms 47172 KB Output is correct
32 Correct 21 ms 47200 KB Output is correct
33 Correct 23 ms 47236 KB Output is correct
34 Correct 24 ms 47188 KB Output is correct
35 Correct 20 ms 47428 KB Output is correct
36 Correct 22 ms 47376 KB Output is correct
37 Correct 23 ms 47456 KB Output is correct
38 Correct 21 ms 47456 KB Output is correct
39 Correct 20 ms 47436 KB Output is correct
40 Correct 22 ms 47436 KB Output is correct
41 Correct 22 ms 47392 KB Output is correct
42 Correct 21 ms 47428 KB Output is correct
43 Correct 21 ms 47388 KB Output is correct
44 Correct 22 ms 47436 KB Output is correct
45 Correct 22 ms 47400 KB Output is correct
46 Correct 21 ms 47436 KB Output is correct
47 Correct 21 ms 47436 KB Output is correct
48 Correct 21 ms 47440 KB Output is correct
49 Correct 22 ms 47472 KB Output is correct
50 Correct 22 ms 47352 KB Output is correct
51 Correct 22 ms 47440 KB Output is correct
52 Correct 22 ms 47436 KB Output is correct
53 Correct 21 ms 47428 KB Output is correct
54 Correct 21 ms 47436 KB Output is correct
55 Correct 20 ms 47424 KB Output is correct
56 Correct 21 ms 47436 KB Output is correct
57 Correct 21 ms 47400 KB Output is correct
58 Correct 23 ms 47372 KB Output is correct
59 Correct 21 ms 47200 KB Output is correct
60 Correct 25 ms 47164 KB Output is correct
61 Correct 21 ms 47256 KB Output is correct
62 Correct 23 ms 47216 KB Output is correct
63 Correct 25 ms 47180 KB Output is correct
64 Correct 23 ms 47176 KB Output is correct
65 Correct 150 ms 145076 KB Output is correct
66 Correct 176 ms 145052 KB Output is correct
67 Correct 152 ms 145008 KB Output is correct
68 Correct 158 ms 145080 KB Output is correct
69 Correct 150 ms 144996 KB Output is correct
70 Correct 150 ms 145072 KB Output is correct
71 Correct 174 ms 145028 KB Output is correct
72 Correct 156 ms 145092 KB Output is correct
73 Correct 152 ms 145044 KB Output is correct
74 Correct 169 ms 145096 KB Output is correct
75 Correct 156 ms 145008 KB Output is correct
76 Correct 150 ms 145084 KB Output is correct
77 Correct 152 ms 145056 KB Output is correct
78 Correct 161 ms 145108 KB Output is correct
79 Correct 159 ms 145200 KB Output is correct
80 Correct 150 ms 145020 KB Output is correct
81 Correct 184 ms 145004 KB Output is correct
82 Correct 161 ms 145052 KB Output is correct
83 Correct 177 ms 145152 KB Output is correct
84 Correct 186 ms 145052 KB Output is correct
85 Correct 169 ms 145084 KB Output is correct
86 Correct 179 ms 145040 KB Output is correct
87 Correct 177 ms 145116 KB Output is correct
88 Correct 173 ms 145028 KB Output is correct
89 Correct 176 ms 145120 KB Output is correct
90 Correct 201 ms 145092 KB Output is correct
91 Correct 189 ms 145064 KB Output is correct
92 Correct 182 ms 145096 KB Output is correct
93 Correct 196 ms 145000 KB Output is correct
94 Correct 179 ms 145020 KB Output is correct
95 Correct 191 ms 145052 KB Output is correct
96 Correct 214 ms 145124 KB Output is correct
97 Correct 188 ms 145168 KB Output is correct
98 Correct 192 ms 145076 KB Output is correct
99 Correct 193 ms 145128 KB Output is correct
100 Correct 192 ms 145148 KB Output is correct
101 Correct 186 ms 145004 KB Output is correct
102 Correct 191 ms 145012 KB Output is correct