提出 #16702070

---

ソースコード 拡げる

#include <bits/stdc++.h>
using namespace std;

int main(){
	int n;
	scanf("%d", &n);
	
	vector <int> cnt(n, 0), cntb(n, 0), a(n), b(n);
	
	for(int i = 0; i < n; i++){
		scanf("%d", &a[i]);
		a[i]--;
		
		cnt[a[i]]++;
	}
	
	for(int i = 0; i < n; i++){
		scanf("%d", &b[i]);
		b[i]--;
		
		cnt[b[i]]++;
		cntb[b[i]]++;
	}
	
	set < pair <int, int> > s;
	for(int i = 0; i < n; i++){
		if(cnt[i] > n){
			printf("No\n");
			return 0;
		}
		if(cntb[i] > 0)s.insert(make_pair(cnt[i], i));
	}
	
	printf("Yes\n");
	for(int i = 0; i < n; i++){
		if(i > 0)printf(" ");
		
		if(s.size() == 1){
			printf("%d", s.begin()->second + 1);
			continue;
		}
		
		int x = prev(s.end())->second, y = prev(prev(s.end()))->second;
		
		if(x != a[i]){
			printf("%d", x + 1);
			
			if(cntb[a[i]] > 0)s.erase(make_pair(cnt[a[i]], a[i]));
			s.erase(make_pair(cnt[x], x));
			
			cnt[a[i]]--;
			cnt[x]--;
			cntb[x]--;
			
			if(cntb[a[i]] > 0)s.insert(make_pair(cnt[a[i]], a[i]));
			if(cntb[x] > 0)s.insert(make_pair(cnt[x], x));
		}else{
			printf("%d", y + 1);
			
			if(cntb[a[i]] > 0)s.erase(make_pair(cnt[a[i]], a[i]));
			s.erase(make_pair(cnt[y], y));
			
			cnt[a[i]]--;
			cnt[y]--;
			cntb[y]--;
			
			if(cntb[a[i]] > 0)s.insert(make_pair(cnt[a[i]], a[i]));
			if(cntb[y] > 0)s.insert(make_pair(cnt[y], y));
		}
	}
	printf("\n");
	
	return 0;
}

提出情報

コンパイルエラー

./Main.cpp: In function ‘int main()’:
./Main.cpp:6:7: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
    6 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~
./Main.cpp:11:8: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   11 |   scanf("%d", &a[i]);
      |   ~~~~~^~~~~~~~~~~~~
./Main.cpp:18:8: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   18 |   scanf("%d", &b[i]);
      |   ~~~~~^~~~~~~~~~~~~

ジャッジ結果