/*
ID: Sho10
LANG: C++
*/
#include <bits/stdc++.h> //Andrei Alexandru a.k.a Sho10
#define ll long long int
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#define all(a) (a).begin(), (a).end()
#define sz size
#define f first
#define s second
#define pb push_back
#define er erase
#define in insert
#define mp make_pair
#define pi pair
#define rc(s) return cout<<s,0
#define endl '\n'
#define mod 1000000007
#define PI 3.14159265359
#define CODE_START ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace std;
ll n,a[205];
vector<pair<ll,ll>>v;
int32_t main(){
CODE_START;
cin>>n;
v.pb(mp(0,-1));
ll s1=1;
ll val=sqrt(n);
if(val*(val+1)/2>n){
val--;
}
n=n-val*(val+1)/2;
for(ll i=1;i<=val;i++)
{
v.pb(mp(s1,s1-1));
}
s1++;
}
if(n>=1){
v.pb(mp(s1,n-1));
}
cout<<v.size()<<endl;
for(ll i=0;i<v.size();i++)
cout<<v[i].f<<' '<<v[i].s<<endl;
}
Compilation message
subway.cpp:42:1: error: expected unqualified-id before 'if'
if(n>=1){
^~
subway.cpp:45:1: error: 'cout' does not name a type; did you mean 'cosl'?
cout<<v.size()<<endl;
^~~~
cosl
subway.cpp:46:1: error: expected unqualified-id before 'for'
for(ll i=0;i<v.size();i++)
^~~
subway.cpp:46:12: error: 'i' does not name a type
for(ll i=0;i<v.size();i++)
^
subway.cpp:46:23: error: 'i' does not name a type
for(ll i=0;i<v.size();i++)
^
subway.cpp:48:1: error: expected declaration before '}' token
}
^
