Submission #890272

---

Source Code Expand

#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define vvi vector< vector<int> >
#define vi vector<int>
#define All(X) X.begin(),X.end()
#define FOR(i,a,b) for(int i=(int)(a);i<(int)(b);i++)
#define REP(i,n) for(int i=0;i<(int)(n);i++)
#define pb push_back
#define pii pair<int,int>
#define mp make_pair
#define pi 3.14159265359
#define shosu(X) fixed << setprecision(X)
ll gcd(ll a,ll b){return b?gcd(b,a%b):a;}
ll lcm(ll a,ll b){return a/gcd(a,b)*b;}
int main(){
	string s;
	cin >> s;
	REP(i,4) cout <	< s[i];
	cout << " ";
	FOR(i,4,12) cout << s[i];
	cout << endl; 
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:20:18: error: expected primary-expression before ‘<’ token
  REP(i,4) cout < < s[i];
                  ^