detect_capital.cpp

// https://youtu.be/8ymiMHQPgZY
#include<bits/stdc++.h>

using namespace std;



#define fastio() ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define MOD 1000000007
#define MOD1 998244353
#define INF 1e18
#define nline "\n"
#define pb push_back
#define ppb pop_back
#define mp make_pair
#define ff first
#define ss second
#define PI 3.141592653589793238462
#define set_bits __builtin_popcountll
#define sz(x) ((int)(x).size())
#define all(x) (x).begin(), (x).end()
# define my_sizeof(type) ((char *)(&type+1)-(char*)(&type))
#define print_vec(x) for(auto i:x) cout<<i<<" "; // prints elements of an int vector


typedef long long ll;
typedef long long int lli;
typedef unsigned long long ull;
typedef long double lld;
// typedef tree<pair<int, int>, null_type, less<pair<int, int>>, rb_tree_tag, tree_order_statistics_node_update > pbds; // find_by_order, order_of_key

#ifndef ONLINE_JUDGE
#define debug(x) cerr << #x <<" "; _print(x); cerr << endl;
#else
#define debug(x)
#endif

void _print(ll t) {cerr << t;}
void _print(int t) {cerr << t;}
void _print(string t) {cerr << t;}
void _print(char t) {cerr << t;}
void _print(lld t) {cerr << t;}
void _print(double t) {cerr << t;}
void _print(ull t) {cerr << t;}

template <class T, class V> void _print(pair <T, V> p);
template <class T> void _print(vector <T> v);
template <class T> void _print(set <T> v);
template <class T, class V> void _print(map <T, V> v);
template <class T> void _print(multiset <T> v);
template <class T, class V> void _print(pair <T, V> p) {cerr << "{"; _print(p.ff); cerr << ","; _print(p.ss); cerr << "}";}
template <class T> void _print(vector <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
template <class T> void _print(set <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
template <class T> void _print(multiset <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
template <class T, class V> void _print(map <T, V> v) {cerr << "[ "; for (auto i : v) {_print(i); cerr << " ";} cerr << "]";}
/*===============================================================================================================================*/
bool lower(string arr){
    // bool flag = false;
    int len1 = 0;
    for(int i=0;i<arr.length();i++){
        if(islower(arr[i])){
            // flag = true;
            len1++;
        }
    }
    if(len1 == arr.length()){
        return true;
    }
    else{
        return false;
    }
}
bool upper(string arr){
    // bool flag = false;
    int len1 = 0;
    for(int i=0;i<arr.length();i++){
        if(isupper(arr[i])){
            // flag = true;
            len1++;
        }
    }
    if(len1 == arr.length()){
        return true;
    }
    else{
        return false;
    }
}
bool detectCapitalUse(string word) {
    bool res = isupper(word[0]) and lower(word.substr(1,word.length()));
    if(upper(word) or lower(word) or res){
        cout<<"1 true";
        return true;
    }
    else{
        cout<<"1 false";
        return false;
    }
    // if(isupper(word[0]) and lower(word.substr(1,word.length()))){
    //     cout<<word[0];
    //     cout<<nline;
    //     return true;
    // }
    // else{
    //     cout<<"2 true";
    //     return false;
    // }
}
int main() {
#ifndef ONLINE_JUDGE
    freopen("errorf.in", "w", stderr);
#endif

    fastio();
    string arr = "Leetcode";
    // int len = arr.length();
    // if(upper(arr) or lower(arr)){
    //     return true;
    // }
    // else{
    //     return false;
    // }
    // if(upper(arr[0]) and lower(arr.substr(1,arr.length()))){
    //     return true;
    // }
    // else{
    //     return false;
    // }
    bool ans = detectCapitalUse(arr);
    if(ans){
        cout<<"hi";
    }
    else{
        cout<<"bye";
    }
}