Submission #1241186

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Source Code Expand

#include<iostream>
#include<string.h>
#include<ctype.h>
#include<string>
#include<math.h>
#define pi 3.141592653589
#include<iomanip>
using namespace std;
#include<algorithm>

void swap(char *a,char *b){
    char tmp;
    tmp=*a;
    *a=*b;
    *b=tmp;
}

string reverse(string s,int a,int b){
    for(int i=0;i<(b-a+1)/2;i++){
        swap(&s[a+i],&s[b-i]);
    }
    return s;
}

int main(){
    
    string s;
    int n,l,r;
    
    cin>>s>>n;
    for(int i=0;i<n;i++){
        cin>>l>>r;
        s=reverse(s,l-1,r-1);
    }
    cout<<s<<endl;
 
    return 0;
}
 

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