oj.uz

Submission #203991

# Submission time Handle Problem Language Result Execution time Memory
203991 2020-02-23T13:36:14 Z cheetose Lamps (JOI19_lamps) C++11
100 / 100
 228 ms 22008 KB 
#include <bits/stdc++.h>
#define mp make_pair
#define pb push_back
#define X first
#define Y second
#define y0 y12
#define y1 y22
#define INF 987654321987654321
#define PI 3.141592653589793238462643383279502884
#define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
#define fdn(i,a,b,c) for(int (i)=(a);(i)>=(b);(i)-=(c))
#define MEM0(a) memset((a),0,sizeof(a));
#define MEM_1(a) memset((a),-1,sizeof(a));
#define ALL(a) a.begin(),a.end()
#define SYNC ios_base::sync_with_stdio(false);cin.tie(0)
using namespace std;
typedef long long ll;
typedef long double ld;
typedef double db;
typedef unsigned int uint;
typedef unsigned long long ull;
typedef pair<int, int> Pi;
typedef pair<ll, ll> Pll;
typedef pair<ld, ld> Pd;
typedef vector<int> Vi;
typedef vector<ll> Vll;
typedef vector<double> Vd;
typedef vector<Pi> VPi;
typedef vector<Pll> VPll;
typedef vector<Pd> VPd;
typedef tuple<int, int, int> iii;
typedef tuple<int, int, int, int> iiii;
typedef tuple<ll, ll, ll> LLL;
typedef vector<iii> Viii;
typedef vector<LLL> VLLL;
typedef complex<double> base;
const int MOD = 998244353;
ll POW(ll a, ll b, ll MMM = MOD) { ll ret = 1; for (; b; b >>= 1, a = (a*a) % MMM)if (b & 1)ret = (ret*a) % MMM; return ret; }
ll gcd(ll a, ll b) { return b ? gcd(b, a%b) : a; }
ll lcm(ll a, ll b) { if (a == 0 || b == 0)return a + b; return a*(b / gcd(a, b)); }
int dx[] = { 0,1,0,-1,1,1,-1,-1 }, dy[] = { 1,0,-1,0,1,-1,1,-1 };

int a[1000005],b[1000005],d[3][1000005];
int main() {
	int n;
	scanf("%d",&n);
	fup(i,1,n,1)scanf("%1d",a+i);
	fup(i,1,n,1)scanf("%1d",b+i);
	d[0][1]=b[1]+1,d[1][1]=2-b[1],d[2][1]=a[1]!=b[1];
	fup(i,2,n,1)
	{
		d[0][i]=min(d[0][i-1]+(!b[i-1] && b[i]),d[2][i-1]+1+(a[i-1]==b[i-1] && b[i]));
		d[1][i]=min(d[1][i-1]+(b[i-1] && !b[i]),d[2][i-1]+1+(a[i-1]==b[i-1] && !b[i]));
		d[2][i]=min({
			d[2][i-1]+(a[i]!=b[i] && a[i-1]==b[i-1]),
			d[0][i-1]+(a[i]!=b[i] && !b[i-1]),
			d[1][i-1]+(a[i]!=b[i] && b[i-1])
		});
	}
	printf("%d\n",min({d[0][n],d[1][n],d[2][n]}));
}

Compilation message

lamp.cpp: In function 'int main()':
lamp.cpp:46:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~
lamp.cpp:47:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  fup(i,1,n,1)scanf("%1d",a+i);
              ~~~~~^~~~~~~~~~~
lamp.cpp:48:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  fup(i,1,n,1)scanf("%1d",b+i);
              ~~~~~^~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 252 KB Output is correct
2 Correct 5 ms 248 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 380 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 5 ms 376 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 5 ms 376 KB Output is correct
27 Correct 5 ms 376 KB Output is correct
28 Correct 5 ms 376 KB Output is correct
29 Correct 5 ms 376 KB Output is correct
30 Correct 5 ms 380 KB Output is correct
31 Correct 5 ms 376 KB Output is correct
32 Correct 5 ms 376 KB Output is correct
33 Correct 5 ms 376 KB Output is correct
34 Correct 5 ms 376 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 252 KB Output is correct
2 Correct 5 ms 248 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 380 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 5 ms 376 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 5 ms 376 KB Output is correct
27 Correct 5 ms 376 KB Output is correct
28 Correct 5 ms 376 KB Output is correct
29 Correct 5 ms 376 KB Output is correct
30 Correct 5 ms 380 KB Output is correct
31 Correct 5 ms 376 KB Output is correct
32 Correct 5 ms 376 KB Output is correct
33 Correct 5 ms 376 KB Output is correct
34 Correct 5 ms 376 KB Output is correct
35 Correct 5 ms 376 KB Output is correct
36 Correct 5 ms 376 KB Output is correct
37 Correct 5 ms 376 KB Output is correct
38 Correct 5 ms 376 KB Output is correct
39 Correct 5 ms 380 KB Output is correct
40 Correct 5 ms 376 KB Output is correct
41 Correct 5 ms 376 KB Output is correct
42 Correct 5 ms 376 KB Output is correct
43 Correct 5 ms 376 KB Output is correct
44 Correct 5 ms 380 KB Output is correct
45 Correct 5 ms 376 KB Output is correct
46 Correct 5 ms 376 KB Output is correct
47 Correct 5 ms 376 KB Output is correct
48 Correct 5 ms 376 KB Output is correct
49 Correct 6 ms 376 KB Output is correct
50 Correct 5 ms 376 KB Output is correct
51 Correct 5 ms 376 KB Output is correct
52 Correct 5 ms 376 KB Output is correct
53 Correct 5 ms 376 KB Output is correct
54 Correct 5 ms 376 KB Output is correct
55 Correct 5 ms 376 KB Output is correct
56 Correct 5 ms 376 KB Output is correct
57 Correct 5 ms 376 KB Output is correct
58 Correct 5 ms 376 KB Output is correct

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 380 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 197 ms 22008 KB Output is correct
8 Correct 207 ms 21880 KB Output is correct
9 Correct 200 ms 21880 KB Output is correct
10 Correct 205 ms 21880 KB Output is correct
11 Correct 198 ms 21880 KB Output is correct
12 Correct 202 ms 21848 KB Output is correct
13 Correct 195 ms 21880 KB Output is correct
14 Correct 201 ms 21880 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 252 KB Output is correct
2 Correct 5 ms 248 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 380 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 5 ms 376 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 5 ms 376 KB Output is correct
27 Correct 5 ms 376 KB Output is correct
28 Correct 5 ms 376 KB Output is correct
29 Correct 5 ms 376 KB Output is correct
30 Correct 5 ms 380 KB Output is correct
31 Correct 5 ms 376 KB Output is correct
32 Correct 5 ms 376 KB Output is correct
33 Correct 5 ms 376 KB Output is correct
34 Correct 5 ms 376 KB Output is correct
35 Correct 5 ms 376 KB Output is correct
36 Correct 5 ms 376 KB Output is correct
37 Correct 5 ms 376 KB Output is correct
38 Correct 5 ms 376 KB Output is correct
39 Correct 5 ms 380 KB Output is correct
40 Correct 5 ms 376 KB Output is correct
41 Correct 5 ms 376 KB Output is correct
42 Correct 5 ms 376 KB Output is correct
43 Correct 5 ms 376 KB Output is correct
44 Correct 5 ms 380 KB Output is correct
45 Correct 5 ms 376 KB Output is correct
46 Correct 5 ms 376 KB Output is correct
47 Correct 5 ms 376 KB Output is correct
48 Correct 5 ms 376 KB Output is correct
49 Correct 6 ms 376 KB Output is correct
50 Correct 5 ms 376 KB Output is correct
51 Correct 5 ms 376 KB Output is correct
52 Correct 5 ms 376 KB Output is correct
53 Correct 5 ms 376 KB Output is correct
54 Correct 5 ms 376 KB Output is correct
55 Correct 5 ms 376 KB Output is correct
56 Correct 5 ms 376 KB Output is correct
57 Correct 5 ms 376 KB Output is correct
58 Correct 5 ms 376 KB Output is correct
59 Correct 5 ms 376 KB Output is correct
60 Correct 5 ms 376 KB Output is correct
61 Correct 5 ms 376 KB Output is correct
62 Correct 5 ms 376 KB Output is correct
63 Correct 5 ms 380 KB Output is correct
64 Correct 5 ms 376 KB Output is correct
65 Correct 197 ms 22008 KB Output is correct
66 Correct 207 ms 21880 KB Output is correct
67 Correct 200 ms 21880 KB Output is correct
68 Correct 205 ms 21880 KB Output is correct
69 Correct 198 ms 21880 KB Output is correct
70 Correct 202 ms 21848 KB Output is correct
71 Correct 195 ms 21880 KB Output is correct
72 Correct 201 ms 21880 KB Output is correct
73 Correct 202 ms 21880 KB Output is correct
74 Correct 215 ms 21880 KB Output is correct
75 Correct 216 ms 21880 KB Output is correct
76 Correct 215 ms 21880 KB Output is correct
77 Correct 206 ms 21880 KB Output is correct
78 Correct 208 ms 21964 KB Output is correct
79 Correct 210 ms 21884 KB Output is correct
80 Correct 226 ms 21880 KB Output is correct
81 Correct 212 ms 21880 KB Output is correct
82 Correct 212 ms 21880 KB Output is correct
83 Correct 204 ms 22008 KB Output is correct
84 Correct 200 ms 21880 KB Output is correct
85 Correct 205 ms 21884 KB Output is correct
86 Correct 209 ms 21880 KB Output is correct
87 Correct 204 ms 21884 KB Output is correct
88 Correct 210 ms 21888 KB Output is correct
89 Correct 204 ms 21884 KB Output is correct
90 Correct 203 ms 21884 KB Output is correct
91 Correct 214 ms 21940 KB Output is correct
92 Correct 210 ms 21880 KB Output is correct
93 Correct 214 ms 21880 KB Output is correct
94 Correct 209 ms 21880 KB Output is correct
95 Correct 211 ms 21880 KB Output is correct
96 Correct 228 ms 21880 KB Output is correct
97 Correct 209 ms 21756 KB Output is correct
98 Correct 219 ms 21880 KB Output is correct
99 Correct 213 ms 21880 KB Output is correct
100 Correct 212 ms 21880 KB Output is correct
101 Correct 217 ms 21880 KB Output is correct
102 Correct 216 ms 21880 KB Output is correct