Submission #251944

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
251944	2020-07-23 08:19:02	phamhoanghiep	Lamps (JOI19_lamps)	C++14	4 / 100	133 ms	25972 KiB

lamp

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include<bits/stdc++.h>
using namespace std;
const int maxn=1e6+1;
int dp[4][maxn];
int a[maxn];
int b[maxn];
// 0: assign 0
// 1: assign 1
// 2: flip
// 3: vohok
signed main() {
  int n;
  string sa;
  string sb;
  cin>>n>>sa>>sb;
  sa="z"+sa;
  sb="z"+sb;
  for(int i=1 ; i<=n ; i++) {
    if(sa[i]=='1') a[i]=1;
    else a[i]=0;
    if(sb[i]=='1') b[i]=1;
    else b[i]=0;
  }
  dp[0][0]=dp[1][0]=dp[2][0]=dp[3][0]=0;
  for(int i=1 ; i<=n ; i++) {
    if(i==1) {
      if(a[i]==b[i]) {
        dp[a[i]][i]=1;
        dp[3][i]=0;
        dp[2][i]=maxn;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

• Subtask 1: 0 / 6
• Subtask 2: 0 / 41
• Subtask 3: 4 / 4
• Subtask 4: 0 / 49