Submission #1947160

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Source Code Expand

#include <bits/stdc++.h>
#pragma comment(linker, "/STACK:1024000000,1024000000")
#define mem(a,b) memset((a),(b),sizeof(a))
#define MP make_pair
#define pb push_back
#define fi first
#define se second
#define sz(x) x.size()
#define all(x) x.begin(),x.end()
using namespace std;
#define _GLIBCXX_PERMIT_BACKWARD_HASH
#include <ext/hash_map>
using namespace __gnu_cxx;
struct str_hash{size_t operator()(const string& str)const{return __stl_hash_string(str.c_str());}};
typedef long long ll;
typedef unsigned long long ull;
#define PII pair<int,int>
#define PLL pair<ll,ll>
#define PDD pair<double,double>
const int INF=0x3f3f3f3f;
const ll LLINF=0x3f3f3f3f3f3f3f3f;
const double PI=acos(-1.0);
const double eps=1e-8;
const int MAX=1e5+10;
const ll mod=1e9+7;
int main()
{
	int i,n,x;
	while(~scanf("%d",&n))
	{
		vector<int> ans;
		for(i=0;i<n;i++)
		{
			scanf("%d",&x);
			ans.pb(x);
		}
		sort(all(ans));
		ans.resize(unique(all(ans))-ans.begin());
		printf("%d\n",sz(ans));
	}
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:39:24: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘std::vector<int>::size_type {aka long unsigned int}’ [-Wformat=]
   printf("%d\n",sz(ans));
                        ^
./Main.cpp:34:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d",&x);
                  ^

Judge Result