이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
using namespace std;
const int N=1000005;
int pw[N],mod,n;
string s;
int add(int a,int b){
return a+b-(a+b>=mod?mod:0);
}
int index(){
int mn=0,mx=0,d=0,res=0;
for(int i=0;i<n;i++){
if(s[i]=='L'){
mn=min(mn,d-1);
d--;
}else{
int x=0,mn2=min(mn,d-1),_d=d-1,_n=n-i-1;
if(mx<=1&&mn2>=-1)res=add(res,pw[(_n+(_d==0))/2]),x++;
if(mx<=2&&mn2>=0)res=add(res,pw[(_n+(_d==1))/2]),x++;
if(mx<=0&&mn2>=-2)res=add(res,pw[(_n+(_d==-1))/2]),x++;
if(x>1)res=add(res,mod-1);
mx=max(mx,d+1);
d++;
}
}
return add(res,1);
}
int main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
pw[0]=1;
for(int i=1;i<N;i++)pw[i]=add(pw[i-1],pw[i-1]);
cin>>n>>mod>>s;
cout<<index();
return 0;
}
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |