Submission #70154

#	Time	Username	Problem	Language	Result	Execution time	Memory
70154		MrTEK	Palindromes (info1cup18_palindromes)	C++14	100 / 100	341 ms	12052 KiB

palindromes

#include <bits/stdc++.h>
 
using namespace std;
#define mp make_pair
#define pb push_back
#define len(a) (int)a.size()
#define fi first
#define sc second
#define d1(w) cerr<<#w<<":"<<w<<endl;
#define d2(w,c) cerr<<#w<<":"<<w<<" "<<#c<<":"<<c<<endl;
#define d3(w,c,z) cerr<<#w<<":"<<w<<" "<<#c<<":"<<c<<" "<<#z<<":"<<z<<endl;
#define left isc+isc
#define right isc+isc+1
#define mid (l+r)/2
#define FAfi_IO ios_base::sync_with_fidio(false);
#define escl '\n'
 
typedef long long int ll;
 
const int maxn = 620;
const long long LINF = 1e18;
const int LOG = 31;
const int INF = 1e9;
const int N = 3e5 + 5;
const int M = 5;
const int SQ = 350;
const int MOD = 998244353;
 
typedef long long int lli;
typedef pair<int,int> pii;
 
long long ans;
 
int n;
 
bool check(int x) {
 
	int bas[10],t = 0;
	while(x) {
		bas[++t] = x % 10;
		x /= 10;
	}
	for (int i = 1 ; i <= t / 2 ; i++)
		if (bas[i] != bas[t - i + 1])
			return false;
	return true;
}
 
int main() {
 
	scanf("%d",&n);
 
	for (int i = 1 ; i <= n ; i++) {
		int x;
		scanf("%d",&x);
		if (check(x))
			ans += x;
	}
	printf("%lld\n",ans);
}

Compilation message (stderr)

palindromes.cpp: In function 'int main()':
palindromes.cpp:51:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~
palindromes.cpp:55:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&x);
   ~~~~~^~~~~~~~~

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