提出 #38403507

---

ソースコード 拡げる

#include <bits/stdc++.h>
#define st first
#define nd second
#define db double
#define re register
#define pb push_back
#define mk make_pair
//#define int long long
#define ldb long double
#define pii pair<int, int>
#define ull unsigned long long
#define mst(a, b) memset(a, b, sizeof(a))
using namespace std;
const int N = 5e5 + 10;
inline int read()
{
  int s = 0, w = 1;
  char ch = getchar();
  while(ch < '0' || ch > '9') { if(ch == '-') w *= -1; ch = getchar(); }
  while(ch >= '0' && ch <= '9') s = s * 10 + ch - '0', ch = getchar();
  return s * w;
}
int n;
int tot = 1, vis[N], tr[N][26];
string r[N];
inline void insert(string s) //插入字典树
{
  int u = 1;
  for(re int i = 0; i < s.size(); i++){
    int ch = s[i] - 'a';
    if(!tr[u][ch]) tr[u][ch] = ++tot;
    u = tr[u][ch], vis[u] += 1; //记录踏足的次数
  }
}
inline int query(string s)
{
  int u = 1, res = 0;
  for(re int i = 0; i < s.size(); i++){
    int ch = s[i] - 'a'; u = tr[u][ch];
    if(vis[u] > 1) res = i + 1;
  }
  return res;
}
signed main()
{
  n = read();
  for(re int i = 1; i <= n; i++) cin >> r[i], insert(r[i]);
  for(re int i = 1; i <= n; i++) printf("%d\n", query(r[i]));
  return 0;
}

提出情報

コンパイルエラー

./Main.cpp: In function ‘void insert(std::string)’:
./Main.cpp:29:14: warning: ISO C++17 does not allow ‘register’ storage class specifier [-Wregister]
   29 |   for(re int i = 0; i < s.size(); i++){
      |              ^
./Main.cpp:29:23: warning: comparison of integer expressions of different signedness: ‘int’ and ‘std::__cxx11::basic_string<char>::size_type’ {aka ‘long unsigned int’} [-Wsign-compare]
   29 |   for(re int i = 0; i < s.size(); i++){
      |                     ~~^~~~~~~~~~
./Main.cpp: In function ‘int query(std::string)’:
./Main.cpp:38:14: warning: ISO C++17 does not allow ‘register’ storage class specifier [-Wregister]
   38 |   for(re int i = 0; i < s.size(); i++){
      |              ^
./Main.cpp:38:23: warning: comparison of integer expressions of different signedness: ‘int’ and ‘std::__cxx11::basic_string<char>::size_type’ {aka ‘long unsigned int’} [-Wsign-compare]
   38 |   for(re int i = 0; i < s.size(); i++){
      |                     ~~^~~~~~~~~~
./Main.cpp: In function ‘int main()’:
./Main.cpp:47:14: warning: ISO C++17 does not allow ‘register’ storage class specifier [-Wregister]
   47 |   for(re int i = 1; i <= n; i++) cin >> r[i], insert(r[i]);
      |              ^
./Main.cpp:48:14: warning: ISO C++17 does not allow ‘register’ storage class specifier [-Wregister]
   48 |   for(re int i = 1; i <= n; i++) printf("%d\n", query(r[i]));
      |              ^

ジャッジ結果