CodeForces 738A Interview with Oleg

#pragma comment(linker, "/STACK:1024000000,1024000000")
#include<cstdio>
#include<cstring>
#include<cmath>
#include<algorithm>
#include<vector>
#include<map>
#include<set>
#include<queue>
#include<stack>
#include<ctime>
#include<iostream>
using namespace std;
typedef long long LL;
const double pi=acos(-1.0);
void File()
{
    freopen("D:\\in.txt","r",stdin);
    freopen("D:\\out.txt","w",stdout);
}//.
template <class T>
inline void read(T &x)
{
    char c = getchar();
    x = 0;
    while(!isdigit(c)) c = getchar();
    while(isdigit(c))
    {
        x = x * 10 + c - ‘0‘;
        c = getchar();
    }
}

int n;
char s[110];

int main()
{
    cin>>n;
    cin>>s;
    int len=strlen(s);
    for(int i=0;i<len;)
    {
        if(s[i]==‘o‘)
        {
            int j;
            for(j=i+1;j<len;)
            {
                if(j<len&&j+1<len&&s[j]==‘g‘&&s[j+1]==‘o‘) j=j+2;
                else break;
            }

            if(i+1==j)
            {
                printf("%c",s[i]);
                i=j;
            }
            else
            {
                printf("***");
                i=j;
            }

        }
        else
        {
            printf("%c",s[i]);
            i++;
        }
    }
    return 0;
}