模拟。
#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; }