Submission #1557433

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Source Code Expand

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sstream>
#include <iostream>
#include <math.h>
#include <time.h>
#include <unistd.h>
#include <algorithm>
#include <map>
#include <list>
#include <queue>
#include <stack>
#include <vector>
#include <set>
#include <string>

#ifndef ONLINE_JUDGE
	#define DEBUG(x) cout << '>' << #x << ':' << x << endl;
#else
	#define DEBUG(x) do {} while(0);
#endif

#define pb push_back
#define mp make_pair
#define X first
#define Y second
#define FOR(i, A, N) for(int (i) = (A); (i) < (N); (i)++)
#define REP(i, N) for(int (i) = 0; (i) < (N); (i)++)

using namespace std;
typedef long long ll;
inline bool EQ(double a, double b) { return fabs(a-b) < 1e-9; }

int n,m;
int cnt[111111];

int main() {
	scanf("%d", &n);
	REP(i, n) {
		int x;
		scanf("%d", &x);
		cnt[x]++;
	}
	int ans = 0;
	for(int X = 1; X <= 100000; X++) {
		ans = max(ans, (cnt[X]+cnt[X-1]+cnt[X+1]));
	}
	printf("%d\n", ans);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:39:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
                 ^
./Main.cpp:42:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &x);
                  ^

Judge Result