제출 #1213204

#제출 시각아이디문제언어결과실행 시간메모리
1213204minhpkLamps (JOI19_lamps)C++20
4 / 100
43 ms33640 KiB
#include <bits/stdc++.h> #define int long long using namespace std; int a; string s,s1; int f[1000001][4]; int bruh=1e18; char exc(char c,int x){ if (x==1){ return '1'; }else if (x==2){ return '0'; }else{ return c; } } signed main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cin >> a; cin >> s >> s1; s='#'+s; s1='#'+s1; for (int i=0;i<=a;i++){ for (int j=1;j<=3;j++){ f[i][j]=bruh; } } f[0][3]=0; for (int i=0;i<a;i++){ for (int j=1;j<=3;j++){ for (int k=1;k<=3;k++){ int cost= f[i][j]; if (j!=k && k!=3){ cost++; } if (exc(s[i+1],k)!=s1[i+1] && (i==1 || exc(s[i],j)==s1[i])){ //cout << "ok" << "\n"; cost++; } f[i+1][k]=min(f[i+1][k],cost); } } } int min1=min({f[a][1],f[a][2],f[a][3]}); cout << min1 << "\n"; return 0; }
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