Submission #102124

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
102124	2019-03-22 16:36:42	tpoppo	Lamps (JOI19_lamps)	C++14	4 / 100	66 ms	28096 KiB

lamp

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#include <bits/stdc++.h>
using namespace std;
const int MAXN = 1e6 + 100;
int n;
string a,b;
int dp[MAXN][2][3];
int main() {
  cin.tie(0);
  ios::sync_with_stdio(0);
  cin >> n;
  cin >> a >> b;
  memset(dp,0x66,sizeof(dp));
  
  
  for(int inv=0;inv<2;inv++) {
    for(int z=0;z<3;z++) {
      dp[0][inv][z] = (inv == 1) + (z != 2);
    }
  }
  
  for(int i=0;i<=n;i++) {
    for(int inv=0;inv<2;inv++) {
      for(int z=0;z<3;z++) {
        //cout<<setw(10)<<dp[i][inv][z]<<" ";
        if(b[i] == '0') dp[i+1][inv][0] = min(dp[i+1][inv][0],dp[i][inv][z] + (z != 0) );
        if(b[i] == '0') dp[i+1][inv][0] = min(dp[i+1][inv][0],dp[i][!inv][z] + 1 + (z != 0) );
 
 
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• Subtask 1: 0 / 6
• Subtask 2: 0 / 41
• Subtask 3: 4 / 4
• Subtask 4: 0 / 49