oj.uz

Submission #127194

# Submission time Handle Problem Language Result Execution time Memory
127194 2019-07-09T06:03:30 Z dndhk Lamps (JOI19_lamps) C++14
100 / 100
 230 ms 35928 KB 
#include <bits/stdc++.h>

#define pb push_back
#define all(v) ((v).begin(), (v).end())
#define sortv(v) sort(all(v))
#define sz(v) ((int)(v).size())
#define uniqv(v) (v).erase(unique(all(v)), (v).end())
#define umax(a, b) (a)=max((a), (b))
#define umin(a, b) (a)=min((a), (b))
#define FOR(i,a,b) for(int i = (a); i <= (b); i++)
#define rep(i,n) FOR(i,1,n)
#define rep0(i,n) FOR(i,0,(int)(n)-1)
#define FI first
#define SE second
#define INF 1000000000
#define INFLL 1000000000000000000LL


using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAX_N = 1000000;

int N;
string A, B;
pii type[MAX_N+1];
int dp[MAX_N+10][2][3];

int main(){
	scanf("%d", &N);
	cin>>A;
	cin>>B;
	for(int i=0; i<N; i++){
		type[i+1] = {(A[i] - '0'), (B[i] - '0')};
	}
	for(int i=0; i<2; i++){
		for(int j=0; j<3; j++){
			dp[0][i][j] = INF;
		}
	}
	dp[0][0][0] = 0;
	for(int n=1; n<=N; n++){
		for(int i=0; i<2; i++){
			for(int j=0; j<3; j++){
				dp[n][i][j] = INF;
				for(int i2=0; i2<2; i2++){
					for(int j2=0; j2<3; j2++){
						int pl = 0;
						if(i==1 && i2==0)	pl++;
						if(j!=j2 && j!=0)	pl++;
						dp[n][i][j] = min(dp[n][i][j], dp[n-1][i2][j2] + pl);
					}
				}
				if(type[n].first==0){
					if(type[n].second==0){
						dp[n][0][2] = dp[n][1][0] = dp[n][1][1] = INF;
					}else{
						dp[n][0][0] = dp[n][0][1] = dp[n][1][2] = INF;
					}
				}else{
					if(type[n].second==0){
						dp[n][0][0] = dp[n][0][2] = dp[n][1][1] = INF;
					}else{
						dp[n][0][1] = dp[n][1][0] = dp[n][1][2] = INF;
					}
				}
			}
		}
	}
	int ans = INF;
	for(int i=0; i<2; i++){
		for(int j=0; j<3; j++){
			ans = min(ans, dp[N][i][j]);
		}
	}
	cout<<ans;
	return 0;
}

Compilation message

lamp.cpp: In function 'int main()':
lamp.cpp:32:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
  ~~~~~^~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 380 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 504 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 256 KB Output is correct
32 Correct 2 ms 380 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 380 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 504 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 256 KB Output is correct
32 Correct 2 ms 380 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 3 ms 376 KB Output is correct
36 Correct 3 ms 504 KB Output is correct
37 Correct 2 ms 376 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 3 ms 380 KB Output is correct
40 Correct 2 ms 376 KB Output is correct
41 Correct 3 ms 376 KB Output is correct
42 Correct 2 ms 376 KB Output is correct
43 Correct 3 ms 376 KB Output is correct
44 Correct 2 ms 376 KB Output is correct
45 Correct 3 ms 376 KB Output is correct
46 Correct 2 ms 376 KB Output is correct
47 Correct 2 ms 376 KB Output is correct
48 Correct 2 ms 376 KB Output is correct
49 Correct 3 ms 376 KB Output is correct
50 Correct 2 ms 376 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 2 ms 504 KB Output is correct
53 Correct 2 ms 376 KB Output is correct
54 Correct 3 ms 376 KB Output is correct
55 Correct 3 ms 376 KB Output is correct
56 Correct 2 ms 376 KB Output is correct
57 Correct 2 ms 376 KB Output is correct
58 Correct 3 ms 376 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 213 ms 33736 KB Output is correct
8 Correct 219 ms 33740 KB Output is correct
9 Correct 216 ms 33864 KB Output is correct
10 Correct 217 ms 33740 KB Output is correct
11 Correct 217 ms 33908 KB Output is correct
12 Correct 219 ms 33804 KB Output is correct
13 Correct 216 ms 33772 KB Output is correct
14 Correct 217 ms 33808 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 380 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 504 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 2 ms 256 KB Output is correct
32 Correct 2 ms 380 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 2 ms 376 KB Output is correct
35 Correct 3 ms 376 KB Output is correct
36 Correct 3 ms 504 KB Output is correct
37 Correct 2 ms 376 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 3 ms 380 KB Output is correct
40 Correct 2 ms 376 KB Output is correct
41 Correct 3 ms 376 KB Output is correct
42 Correct 2 ms 376 KB Output is correct
43 Correct 3 ms 376 KB Output is correct
44 Correct 2 ms 376 KB Output is correct
45 Correct 3 ms 376 KB Output is correct
46 Correct 2 ms 376 KB Output is correct
47 Correct 2 ms 376 KB Output is correct
48 Correct 2 ms 376 KB Output is correct
49 Correct 3 ms 376 KB Output is correct
50 Correct 2 ms 376 KB Output is correct
51 Correct 2 ms 376 KB Output is correct
52 Correct 2 ms 504 KB Output is correct
53 Correct 2 ms 376 KB Output is correct
54 Correct 3 ms 376 KB Output is correct
55 Correct 3 ms 376 KB Output is correct
56 Correct 2 ms 376 KB Output is correct
57 Correct 2 ms 376 KB Output is correct
58 Correct 3 ms 376 KB Output is correct
59 Correct 2 ms 376 KB Output is correct
60 Correct 2 ms 376 KB Output is correct
61 Correct 2 ms 376 KB Output is correct
62 Correct 2 ms 376 KB Output is correct
63 Correct 2 ms 376 KB Output is correct
64 Correct 2 ms 256 KB Output is correct
65 Correct 213 ms 33736 KB Output is correct
66 Correct 219 ms 33740 KB Output is correct
67 Correct 216 ms 33864 KB Output is correct
68 Correct 217 ms 33740 KB Output is correct
69 Correct 217 ms 33908 KB Output is correct
70 Correct 219 ms 33804 KB Output is correct
71 Correct 216 ms 33772 KB Output is correct
72 Correct 217 ms 33808 KB Output is correct
73 Correct 217 ms 35748 KB Output is correct
74 Correct 217 ms 35700 KB Output is correct
75 Correct 219 ms 35760 KB Output is correct
76 Correct 219 ms 35684 KB Output is correct
77 Correct 220 ms 35728 KB Output is correct
78 Correct 226 ms 35628 KB Output is correct
79 Correct 216 ms 35852 KB Output is correct
80 Correct 224 ms 35656 KB Output is correct
81 Correct 219 ms 35716 KB Output is correct
82 Correct 220 ms 35900 KB Output is correct
83 Correct 222 ms 35692 KB Output is correct
84 Correct 224 ms 35688 KB Output is correct
85 Correct 224 ms 35784 KB Output is correct
86 Correct 222 ms 35688 KB Output is correct
87 Correct 223 ms 35636 KB Output is correct
88 Correct 223 ms 35700 KB Output is correct
89 Correct 223 ms 35928 KB Output is correct
90 Correct 224 ms 35736 KB Output is correct
91 Correct 225 ms 35668 KB Output is correct
92 Correct 225 ms 35616 KB Output is correct
93 Correct 226 ms 35704 KB Output is correct
94 Correct 227 ms 35712 KB Output is correct
95 Correct 227 ms 35844 KB Output is correct
96 Correct 230 ms 35684 KB Output is correct
97 Correct 229 ms 35812 KB Output is correct
98 Correct 226 ms 35684 KB Output is correct
99 Correct 227 ms 35680 KB Output is correct
100 Correct 227 ms 35720 KB Output is correct
101 Correct 228 ms 35696 KB Output is correct
102 Correct 226 ms 35920 KB Output is correct