Submission #1605343

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Source Code Expand

#include <stdio.h>
 
#define REP(i,n) for(unsigned long long i=0;i<(n);i++)
#define FOR(i,a,b) for(unsigned long long i=(a);i<(b);i++)
 
template<class T>
T maxs(T &a, const T &b){
	if(a < b) a = b;
	return a;
}
 
unsigned long long n, table[110000], max, ans;
 
int main(void){
	scanf("%llu", &n);
	REP(i, n){
		unsigned long long a;
		scanf("%llu", &a);
		table[a]++;
		table[a + 1]++;
		table[a + 2]++;
		maxs(max, a);
	}
	REP(i, max + 1) maxs(ans, table[i]);
	printf("%llu\n", ans);
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:15:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%llu", &n);
                   ^
./Main.cpp:18:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%llu", &a);
                    ^

Judge Result