Submission #1557435

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Source Code Expand

#include<bits/stdc++.h>

const int N = 100010;

int n;
int cnt[N];

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

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:9:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
                 ^
./Main.cpp:11:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &x);
                  ^

Judge Result