Submission #220301

#	Time	Username	Problem	Language	Result	Execution time	Memory
220301		Sho10	Palindromes (info1cup18_palindromes)	C++14	100 / 100	185 ms	10120 KiB

palindromes

/*
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,x,sum=0;
vector<ll>v;
ll check(ll x){
v.clear();
while(x){
    v.pb(x%10);
    x=x/10;
}
for(ll i=0;i<v.size();i++)
{
    if(v[i]!=v[v.size()-1-i]){
        return 0;
    }
}
return 1;
}
int32_t main(){
CODE_START;
cin>>n;
for(ll i=0;i<n;i++)
{
    cin>>x;
    ll val=x;
    if(check(x)){
        sum=sum+val;
    }
}
cout<<sum<<endl;
}

Compilation message (stderr)

palindromes.cpp: In function 'long long int check(long long int)':
palindromes.cpp:32:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(ll i=0;i<v.size();i++)
            ~^~~~~~~~~

• Subtask 1: 15 / 15
• Subtask 2: 20 / 20
• Subtask 3: 30 / 30
• Subtask 4: 35 / 35