제출 #899693

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
899693	2024-01-06 21:31:28	boyliguanhan	Regions (IOI09_regions)	C++17	컴파일 에러	0 ms	0 KiB

regions

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#include<bits/stdc++.h>
#pragma GCC optimize(2)
#define l int
int read(){
    char x = getchar();
    int val = 0;
    while(x<'0'||x>'9')x=getchar();
    while('0'<=x&&x<='9')
        val = val*10+x-'0', x=getchar();
    return val;
}
void print(int num){
    if(num<0){
        putchar('-');
        num*=-1;
    }
    if(num>9) {
        print(num/10);
    }
    putchar((num%10)^48);
}
using namespace std;
vector<l> adj[200001];
vector<pair<l,l>> arr[25001];
l region[200001], t, ans1[101][25001], ans2[25001][101], in[200001], out[200001], li[200001], sz[25001], lg[101];
gp_hash_table<l,l> dfs(l n){
    gp_hash_table<l,l> cur, nxt;
    cur[region[n]]=1;
    in[n]=t++;
    arr[region[n]].push_back({in[n],1});
 
 
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컴파일 시 표준 에러 (stderr) 메시지

regions.cpp:26:1: error: 'gp_hash_table' does not name a type
   26 | gp_hash_table<l,l> dfs(l n){
      | ^~~~~~~~~~~~~
regions.cpp: In function 'int query_s(int, int)':
regions.cpp:51:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   51 |     while(a<arr[r1].size()||b<arr[r2].size()){
      |           ~^~~~~~~~~~~~~~~
regions.cpp:51:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   51 |     while(a<arr[r1].size()||b<arr[r2].size()){
      |                             ~^~~~~~~~~~~~~~~
regions.cpp:52:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |         if(a<arr[r1].size()&&b<arr[r2].size()){
      |            ~^~~~~~~~~~~~~~~
regions.cpp:52:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |         if(a<arr[r1].size()&&b<arr[r2].size()){
      |                              ~^~~~~~~~~~~~~~~
regions.cpp:57:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |         } else if(a<arr[r1].size())
      |                   ~^~~~~~~~~~~~~~~
regions.cpp: In function 'int main()':
regions.cpp:80:5: error: 'dfs' was not declared in this scope; did you mean 'ffs'?
   80 |     dfs(1);
      |     ^~~
      |     ffs