提出 #66302828

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ソースコード 拡げる

#include <bits/stdc++.h>
using namespace std;
int n;
vector<int> a;
int main()
{
	scanf("%d",&n);
	a.resize(n);
	for(int i=0;i<n;i++)
		scanf("%d",&a[i]);
	sort(a.begin(),a.end());
	a.erase(unique(a.begin(),a.end()),a.end());
	printf("%d\n",a.size());
	for(int &x:a) printf("%d ",x);
	return 0;
}

提出情報

コンパイルエラー

Main.cpp: In function ‘int main()’:
Main.cpp:13:18: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘std::vector<int>::size_type’ {aka ‘long unsigned int’} [-Wformat=]
   13 |         printf("%d\n",a.size());
      |                 ~^    ~~~~~~~~
      |                  |          |
      |                  int        std::vector<int>::size_type {aka long unsigned int}
      |                 %ld
Main.cpp:7:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
    7 |         scanf("%d",&n);
      |         ~~~~~^~~~~~~~~
Main.cpp:10:22: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   10 |                 scanf("%d",&a[i]);
      |                 ~~~~~^~~~~~~~~~~~

ジャッジ結果