#include<iostream> #include<sstream> #include<vector> using namespace std; int main() { string s,p; int T; cin>>s>>T; vector<int>a; stringstream str(s); while(getline(str,p,',')) { a.push_back(stoi(p)); } int L=0,R=a.size()-1,M; bool f=false; while(L<=R) { M=L+(R-L)/2; if(a[M]T) { f=true; cout<<M; break; } else if(a[M]>T) R=M-1; else L=M+1; } if(ffalse) cout<<-1; }

#include<bits/stdc++.h> using namespace std; int bin(vector<int>a,int t){ int l=0,r=a.size()-1,m; bool f=false; while(l<=r){ m=l+(r-l)/2; if(a[m]t){ f=true; return m; }else if(a[m]<t) l=m+1; else r=m-1; } if(ffalse)return -1; } int main(){ string s,p; cin>>s; int t; cin>>t; vector<int>a; stringstream str(s); while(getline(str,p,',')){ a.push_back(stoi(p)); } cout<<bin(a,t); }

#include<iostream> #include<sstream> #include<vector> using namespace std; int main() { string a,b; int t; cin>>a>>t; vector<int>c; stringstream str(a); while(getline(str,b,',')) { a.push_back(stoi(b)); } int l=0,r=a.size()-1,m; int f=0; while(l<=r) { m=l+(r-l)/2; if(a[m]t) { f=1; cout<<m; break; } else if(a[m]>t) { r=m-1; } else { l=m+1; } } if(f0) { cout<<-1; } return 0; }

include<bits/stdc++.h> using namespace std; int main() { string a,b; int T; cin>>a; cin>>T; vector<int>c; stringstream str(a); while(getline(str,b,',')) { c.push_back(stoi(b)); } int s=c.size(); int L=0,R=s-1,m; bool flag=false; while(L<=R) { m=L+(R-L)/2; if(c[m]T) { flag=true; cout<<m; break; } else if(c[m]<T) { L=m+1; } else { R=m-1; } } if(flagfalse)cout<<"-1"; }

#include<iostream> #include<sstream> #include<vector> using namespace std; int main() { string a,b; int t; cin>>a>>t; vector<int>c; stringstream str(a); while(getline(str,b,',')) { c.push_back(stoi(b)); } int l=0,r=c.size()-1,m; int f=0; while(l<=r) { m=l+(r-l)/2; if(c[m]t) { f=true; cout<<m; break; } else if(c[m]>t) { r=m-1; } else { l=m+1; } } if(ffalse) { cout<<-1; } return 0; }