# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
429078 |
2021-06-15T17:14:16 Z |
amunduzbaev |
Lamps (JOI19_lamps) |
C++14 |
|
214 ms |
80744 KB |
/* made by amunduzbaev */
#include "bits/stdc++.h"
using namespace std;
//~ #include <ext/pb_ds/assoc_container.hpp>
//~ #include <ext/pb_ds/tree_policy.hpp>
//~ using namespace __gnu_pbds;
//~ template<class T> using oset = tree<T,
//~ null_type, less_equal<T>, rb_tree_tag,
//~ tree_order_statistics_node_update>;
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
#define ub upper_bound
#define lb lower_bound
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(),x.rend()
#define NeedForSpeed ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define vv vector
#define mem(arr, v) memset(arr, v, sizeof arr)
#define int long long
#define degub(x) cout<<#x<<" : "<<x<<"\n"
#define GG cout<<"here"<<endl;
typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef vector<int> vii;
typedef vector<pii> vpii;
template<class T> bool umin(T& a, const T& b) { return a > b ? a = b, true : false; }
template<class T> bool umax(T& a, const T& b) { return a < b ? a = b, true : false; }
template<int sz> using tut = array<int, sz>;
void usaco(string s) { freopen((s+".in").c_str(),"r",stdin);
freopen((s+".out").c_str(),"w",stdout); NeedForSpeed }
const int N = 1e6+5;
const int mod = 1e9+7;
const ll inf = 1e18;
const ld Pi = acos(-1);
#define MULTI 0
int n, m, k, s, t, q, ans, res, a[N];
int dp[N][2][2][2], b[N];
void solve(int t_case){
cin>>n;
for(int i=1;i<=n;i++) { char c; cin>>c; a[i] = c - '0'; }
for(int i=1;i<=n;i++) { char c; cin>>c; b[i] = c - '0'; }
mem(dp, 127);
dp[0][0][0][0] = 0;
for(int i=1;i<=n;i++){
for(int a0=0;a0<2;a0++){
for(int a1=0;a1<2;a1++){
for(int a2=0;a2<2;a2++){
int x = a[i];
if(a0) x = 0;
if(a1) x = 1;
if(a2) x ^= 1;
if(x != b[i]) continue;
for(int A0=0;A0<2;A0++){
for(int A1=0;A1<2;A1++){
for(int A2=0;A2<2;A2++){
umin(dp[i][a0][a1][a2], dp[i-1][A0][A1][A2] + (a0 > A0) + (a1 > A1) + (a2 > A2));
}
}
}
}
}
}
}
res = inf;
for(int a0=0;a0<2;a0++){
for(int a1=0;a1<2;a1++){
for(int a2=0;a2<2;a2++){
umin(res, dp[n][a0][a1][a2]);
}
}
} cout<<res<<"\n";
}
signed main(){
NeedForSpeed
if(MULTI){
int t; cin>>t;
for(int t_case = 1; t_case <= t; t_case++) solve(t_case);
} else solve(1);
return 0;
}
Compilation message
lamp.cpp: In function 'void usaco(std::string)':
lamp.cpp:38:31: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
38 | void usaco(string s) { freopen((s+".in").c_str(),"r",stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
lamp.cpp:39:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
39 | freopen((s+".out").c_str(),"w",stdout); NeedForSpeed }
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
28 ms |
62924 KB |
Output is correct |
2 |
Correct |
27 ms |
62912 KB |
Output is correct |
3 |
Correct |
30 ms |
62868 KB |
Output is correct |
4 |
Correct |
29 ms |
62940 KB |
Output is correct |
5 |
Correct |
27 ms |
62880 KB |
Output is correct |
6 |
Correct |
29 ms |
62924 KB |
Output is correct |
7 |
Correct |
27 ms |
62880 KB |
Output is correct |
8 |
Correct |
30 ms |
62908 KB |
Output is correct |
9 |
Correct |
28 ms |
62864 KB |
Output is correct |
10 |
Correct |
28 ms |
62908 KB |
Output is correct |
11 |
Correct |
28 ms |
62924 KB |
Output is correct |
12 |
Correct |
27 ms |
62948 KB |
Output is correct |
13 |
Correct |
27 ms |
62924 KB |
Output is correct |
14 |
Correct |
27 ms |
62912 KB |
Output is correct |
15 |
Correct |
28 ms |
62884 KB |
Output is correct |
16 |
Correct |
32 ms |
62916 KB |
Output is correct |
17 |
Correct |
28 ms |
62916 KB |
Output is correct |
18 |
Correct |
28 ms |
62856 KB |
Output is correct |
19 |
Correct |
28 ms |
63056 KB |
Output is correct |
20 |
Correct |
28 ms |
62876 KB |
Output is correct |
21 |
Correct |
29 ms |
62840 KB |
Output is correct |
22 |
Correct |
28 ms |
62924 KB |
Output is correct |
23 |
Correct |
28 ms |
62916 KB |
Output is correct |
24 |
Correct |
29 ms |
62924 KB |
Output is correct |
25 |
Correct |
27 ms |
62912 KB |
Output is correct |
26 |
Correct |
28 ms |
62924 KB |
Output is correct |
27 |
Correct |
30 ms |
62924 KB |
Output is correct |
28 |
Correct |
28 ms |
62892 KB |
Output is correct |
29 |
Correct |
29 ms |
62916 KB |
Output is correct |
30 |
Correct |
26 ms |
62920 KB |
Output is correct |
31 |
Correct |
27 ms |
62920 KB |
Output is correct |
32 |
Correct |
28 ms |
62884 KB |
Output is correct |
33 |
Correct |
28 ms |
62948 KB |
Output is correct |
34 |
Correct |
27 ms |
62924 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
28 ms |
62924 KB |
Output is correct |
2 |
Correct |
27 ms |
62912 KB |
Output is correct |
3 |
Correct |
30 ms |
62868 KB |
Output is correct |
4 |
Correct |
29 ms |
62940 KB |
Output is correct |
5 |
Correct |
27 ms |
62880 KB |
Output is correct |
6 |
Correct |
29 ms |
62924 KB |
Output is correct |
7 |
Correct |
27 ms |
62880 KB |
Output is correct |
8 |
Correct |
30 ms |
62908 KB |
Output is correct |
9 |
Correct |
28 ms |
62864 KB |
Output is correct |
10 |
Correct |
28 ms |
62908 KB |
Output is correct |
11 |
Correct |
28 ms |
62924 KB |
Output is correct |
12 |
Correct |
27 ms |
62948 KB |
Output is correct |
13 |
Correct |
27 ms |
62924 KB |
Output is correct |
14 |
Correct |
27 ms |
62912 KB |
Output is correct |
15 |
Correct |
28 ms |
62884 KB |
Output is correct |
16 |
Correct |
32 ms |
62916 KB |
Output is correct |
17 |
Correct |
28 ms |
62916 KB |
Output is correct |
18 |
Correct |
28 ms |
62856 KB |
Output is correct |
19 |
Correct |
28 ms |
63056 KB |
Output is correct |
20 |
Correct |
28 ms |
62876 KB |
Output is correct |
21 |
Correct |
29 ms |
62840 KB |
Output is correct |
22 |
Correct |
28 ms |
62924 KB |
Output is correct |
23 |
Correct |
28 ms |
62916 KB |
Output is correct |
24 |
Correct |
29 ms |
62924 KB |
Output is correct |
25 |
Correct |
27 ms |
62912 KB |
Output is correct |
26 |
Correct |
28 ms |
62924 KB |
Output is correct |
27 |
Correct |
30 ms |
62924 KB |
Output is correct |
28 |
Correct |
28 ms |
62892 KB |
Output is correct |
29 |
Correct |
29 ms |
62916 KB |
Output is correct |
30 |
Correct |
26 ms |
62920 KB |
Output is correct |
31 |
Correct |
27 ms |
62920 KB |
Output is correct |
32 |
Correct |
28 ms |
62884 KB |
Output is correct |
33 |
Correct |
28 ms |
62948 KB |
Output is correct |
34 |
Correct |
27 ms |
62924 KB |
Output is correct |
35 |
Correct |
34 ms |
62980 KB |
Output is correct |
36 |
Correct |
28 ms |
62868 KB |
Output is correct |
37 |
Correct |
30 ms |
62924 KB |
Output is correct |
38 |
Correct |
29 ms |
62928 KB |
Output is correct |
39 |
Correct |
28 ms |
62904 KB |
Output is correct |
40 |
Correct |
30 ms |
62924 KB |
Output is correct |
41 |
Correct |
30 ms |
62924 KB |
Output is correct |
42 |
Correct |
28 ms |
62924 KB |
Output is correct |
43 |
Correct |
29 ms |
62936 KB |
Output is correct |
44 |
Correct |
34 ms |
62960 KB |
Output is correct |
45 |
Correct |
29 ms |
62884 KB |
Output is correct |
46 |
Correct |
28 ms |
63040 KB |
Output is correct |
47 |
Correct |
30 ms |
62868 KB |
Output is correct |
48 |
Correct |
28 ms |
62892 KB |
Output is correct |
49 |
Correct |
29 ms |
62972 KB |
Output is correct |
50 |
Correct |
27 ms |
62924 KB |
Output is correct |
51 |
Correct |
33 ms |
62912 KB |
Output is correct |
52 |
Correct |
35 ms |
62952 KB |
Output is correct |
53 |
Correct |
28 ms |
62888 KB |
Output is correct |
54 |
Correct |
28 ms |
62880 KB |
Output is correct |
55 |
Correct |
29 ms |
62916 KB |
Output is correct |
56 |
Correct |
28 ms |
62924 KB |
Output is correct |
57 |
Correct |
30 ms |
62900 KB |
Output is correct |
58 |
Correct |
28 ms |
62948 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
29 ms |
62912 KB |
Output is correct |
2 |
Correct |
27 ms |
62864 KB |
Output is correct |
3 |
Correct |
29 ms |
62916 KB |
Output is correct |
4 |
Correct |
28 ms |
62924 KB |
Output is correct |
5 |
Correct |
28 ms |
62848 KB |
Output is correct |
6 |
Correct |
32 ms |
62864 KB |
Output is correct |
7 |
Correct |
163 ms |
80064 KB |
Output is correct |
8 |
Correct |
160 ms |
80052 KB |
Output is correct |
9 |
Correct |
160 ms |
80444 KB |
Output is correct |
10 |
Correct |
167 ms |
80528 KB |
Output is correct |
11 |
Correct |
159 ms |
80524 KB |
Output is correct |
12 |
Correct |
153 ms |
80496 KB |
Output is correct |
13 |
Correct |
151 ms |
80532 KB |
Output is correct |
14 |
Correct |
170 ms |
80468 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
28 ms |
62924 KB |
Output is correct |
2 |
Correct |
27 ms |
62912 KB |
Output is correct |
3 |
Correct |
30 ms |
62868 KB |
Output is correct |
4 |
Correct |
29 ms |
62940 KB |
Output is correct |
5 |
Correct |
27 ms |
62880 KB |
Output is correct |
6 |
Correct |
29 ms |
62924 KB |
Output is correct |
7 |
Correct |
27 ms |
62880 KB |
Output is correct |
8 |
Correct |
30 ms |
62908 KB |
Output is correct |
9 |
Correct |
28 ms |
62864 KB |
Output is correct |
10 |
Correct |
28 ms |
62908 KB |
Output is correct |
11 |
Correct |
28 ms |
62924 KB |
Output is correct |
12 |
Correct |
27 ms |
62948 KB |
Output is correct |
13 |
Correct |
27 ms |
62924 KB |
Output is correct |
14 |
Correct |
27 ms |
62912 KB |
Output is correct |
15 |
Correct |
28 ms |
62884 KB |
Output is correct |
16 |
Correct |
32 ms |
62916 KB |
Output is correct |
17 |
Correct |
28 ms |
62916 KB |
Output is correct |
18 |
Correct |
28 ms |
62856 KB |
Output is correct |
19 |
Correct |
28 ms |
63056 KB |
Output is correct |
20 |
Correct |
28 ms |
62876 KB |
Output is correct |
21 |
Correct |
29 ms |
62840 KB |
Output is correct |
22 |
Correct |
28 ms |
62924 KB |
Output is correct |
23 |
Correct |
28 ms |
62916 KB |
Output is correct |
24 |
Correct |
29 ms |
62924 KB |
Output is correct |
25 |
Correct |
27 ms |
62912 KB |
Output is correct |
26 |
Correct |
28 ms |
62924 KB |
Output is correct |
27 |
Correct |
30 ms |
62924 KB |
Output is correct |
28 |
Correct |
28 ms |
62892 KB |
Output is correct |
29 |
Correct |
29 ms |
62916 KB |
Output is correct |
30 |
Correct |
26 ms |
62920 KB |
Output is correct |
31 |
Correct |
27 ms |
62920 KB |
Output is correct |
32 |
Correct |
28 ms |
62884 KB |
Output is correct |
33 |
Correct |
28 ms |
62948 KB |
Output is correct |
34 |
Correct |
27 ms |
62924 KB |
Output is correct |
35 |
Correct |
34 ms |
62980 KB |
Output is correct |
36 |
Correct |
28 ms |
62868 KB |
Output is correct |
37 |
Correct |
30 ms |
62924 KB |
Output is correct |
38 |
Correct |
29 ms |
62928 KB |
Output is correct |
39 |
Correct |
28 ms |
62904 KB |
Output is correct |
40 |
Correct |
30 ms |
62924 KB |
Output is correct |
41 |
Correct |
30 ms |
62924 KB |
Output is correct |
42 |
Correct |
28 ms |
62924 KB |
Output is correct |
43 |
Correct |
29 ms |
62936 KB |
Output is correct |
44 |
Correct |
34 ms |
62960 KB |
Output is correct |
45 |
Correct |
29 ms |
62884 KB |
Output is correct |
46 |
Correct |
28 ms |
63040 KB |
Output is correct |
47 |
Correct |
30 ms |
62868 KB |
Output is correct |
48 |
Correct |
28 ms |
62892 KB |
Output is correct |
49 |
Correct |
29 ms |
62972 KB |
Output is correct |
50 |
Correct |
27 ms |
62924 KB |
Output is correct |
51 |
Correct |
33 ms |
62912 KB |
Output is correct |
52 |
Correct |
35 ms |
62952 KB |
Output is correct |
53 |
Correct |
28 ms |
62888 KB |
Output is correct |
54 |
Correct |
28 ms |
62880 KB |
Output is correct |
55 |
Correct |
29 ms |
62916 KB |
Output is correct |
56 |
Correct |
28 ms |
62924 KB |
Output is correct |
57 |
Correct |
30 ms |
62900 KB |
Output is correct |
58 |
Correct |
28 ms |
62948 KB |
Output is correct |
59 |
Correct |
29 ms |
62912 KB |
Output is correct |
60 |
Correct |
27 ms |
62864 KB |
Output is correct |
61 |
Correct |
29 ms |
62916 KB |
Output is correct |
62 |
Correct |
28 ms |
62924 KB |
Output is correct |
63 |
Correct |
28 ms |
62848 KB |
Output is correct |
64 |
Correct |
32 ms |
62864 KB |
Output is correct |
65 |
Correct |
163 ms |
80064 KB |
Output is correct |
66 |
Correct |
160 ms |
80052 KB |
Output is correct |
67 |
Correct |
160 ms |
80444 KB |
Output is correct |
68 |
Correct |
167 ms |
80528 KB |
Output is correct |
69 |
Correct |
159 ms |
80524 KB |
Output is correct |
70 |
Correct |
153 ms |
80496 KB |
Output is correct |
71 |
Correct |
151 ms |
80532 KB |
Output is correct |
72 |
Correct |
170 ms |
80468 KB |
Output is correct |
73 |
Correct |
152 ms |
80548 KB |
Output is correct |
74 |
Correct |
182 ms |
80644 KB |
Output is correct |
75 |
Correct |
151 ms |
80452 KB |
Output is correct |
76 |
Correct |
153 ms |
80744 KB |
Output is correct |
77 |
Correct |
166 ms |
80552 KB |
Output is correct |
78 |
Correct |
188 ms |
80528 KB |
Output is correct |
79 |
Correct |
160 ms |
80452 KB |
Output is correct |
80 |
Correct |
179 ms |
80532 KB |
Output is correct |
81 |
Correct |
197 ms |
80452 KB |
Output is correct |
82 |
Correct |
147 ms |
80532 KB |
Output is correct |
83 |
Correct |
163 ms |
80580 KB |
Output is correct |
84 |
Correct |
161 ms |
80480 KB |
Output is correct |
85 |
Correct |
204 ms |
80452 KB |
Output is correct |
86 |
Correct |
166 ms |
80532 KB |
Output is correct |
87 |
Correct |
169 ms |
80476 KB |
Output is correct |
88 |
Correct |
161 ms |
80528 KB |
Output is correct |
89 |
Correct |
165 ms |
80452 KB |
Output is correct |
90 |
Correct |
171 ms |
80444 KB |
Output is correct |
91 |
Correct |
175 ms |
80444 KB |
Output is correct |
92 |
Correct |
176 ms |
80504 KB |
Output is correct |
93 |
Correct |
182 ms |
80452 KB |
Output is correct |
94 |
Correct |
181 ms |
80528 KB |
Output is correct |
95 |
Correct |
184 ms |
80524 KB |
Output is correct |
96 |
Correct |
214 ms |
80528 KB |
Output is correct |
97 |
Correct |
193 ms |
80452 KB |
Output is correct |
98 |
Correct |
180 ms |
80532 KB |
Output is correct |
99 |
Correct |
185 ms |
80520 KB |
Output is correct |
100 |
Correct |
180 ms |
80416 KB |
Output is correct |
101 |
Correct |
176 ms |
80472 KB |
Output is correct |
102 |
Correct |
211 ms |
80520 KB |
Output is correct |