Submission #997925

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Source Code Expand

            #include <bits/stdc++.h>
            #include<iostream>
            #include<cstdio>
            #include<vector>
            #include<queue>
            #include<map>
            #include<cstring>
            #include<string>
            #include <math.h>
            #include<algorithm>
        //    #include <boost/multiprecision/cpp_int.hpp>
            #include<functional>
          #define int long long
            #define inf  1000000007
            #define pa pair<int,int>
    #define ll long long
            #define pal pair<ll,ll>
            #define ppa pair<int,pa>
            #define  mp make_pair
            #define  pb push_back
            #define EPS (1e-10)
            #define equals(a,b) (fabs((a)-(b))<EPS)
     
            using namespace std;
     
            class Point{
            	public:
            	double x,y;
            	Point(double x=0,double y=0):x(x),y(y) {}
            	Point operator + (Point p) {return Point(x+p.x,y+p.y);}
            	Point operator - (Point p) {return Point(x-p.x,y-p.y);}
            	Point operator * (double a) {return Point(x*a,y*a);}
            	Point operator / (double a) {return Point(x/a,y/a);}
            	double absv() {return sqrt(norm());}
            	double norm() {return x*x+y*y;}
            	bool operator < (const Point &p) const{
            		return x != p.x ? x<p.x: y<p.y;
            	}
            	bool operator == (const Point &p) const{
            		return fabs(x-p.x)<EPS && fabs(y-p.y)<EPS;
            	}
            };
            typedef Point Vector;
     
            struct Segment{
            Point p1,p2;
            };
     
        double hen(Vector a){
        if(fabs(a.x)<EPS && a.y>0) return acos(0);
        else if(fabs(a.x)<EPS && a.y<0) return 3*acos(0);
        else if(fabs(a.y)<EPS && a.x<0) return 2*acos(0);
        else if(fabs(a.y)<EPS && a.x>0) return 0.0;
        else if(a.y>0) return acos(a.x/a.absv());
        else return 2*acos(0)+acos(-a.x/a.absv());
     
        }
     
int gcd(int v,int b){
	if(v>b) return gcd(b,v);
	if(v==b) return b;
	if(b%v==0) return v;
	return gcd(v,b%v);
}
            double dot(Vector a,Vector b){
            	return a.x*b.x+a.y*b.y;
            }
            double cross(Vector a,Vector b){
            	return a.x*b.y-a.y*b.x;
            }
        
            //----------------kokomade tenpure------------

	int N=262144;
pa sgt[530000];

pa minis(int i,int j ){
if(i==j) return sgt[i];
	else if(i%2==1){
		pa z=minis(i+1,j);
		if(sgt[i].first>z.first)return sgt[i] ;
		else return z;
	}
		else if(j%2==0) 	{
		pa z=minis(i,j-1);
		if(sgt[j].first>z.first)return sgt[j] ;
		else return z;
	}
else return minis(i/2,j/2);
}

pa sgtmin(int i ,int j) {
	return minis(i+N,j+N);
}

void upd(int x,int y){
	x+=N;
sgt[x].first=y;
	sgt[x].second=x;
x=x/2;
while(x != 0){
	if(sgt[2*x+1].first>sgt[2*x].first){
		sgt[x]=sgt[2*x+1];
	}
	else sgt[x]=sgt[2*x];

x=x/2;
}
}


    signed main(){


    int n;
    	cin>>n;
    	for(int i=N;i<2*N;i++) sgt[i]=make_pair(0,i-N);
    	for(int i=0;i<n;i++){
    		cin>>sgt[i+N].first;
    	}	
    	string s;
    	cin>>s;
    	int jj=0;
    	for(int i=0;i<s.length();i++) if(s[i]=='M') jj=i;
    	int ans=1000000000ll;
    	for(int k=0;k<s.length()-jj-1;k++){
    		pa z=sgtmin(k,k+jj+1);
    		ans=min(z.first,ans);
    	}		
    	
    	
    	cout<<ans<<endl;
    	
    //	printf("%.10f\n",ans);
    	return 0;
    }

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