Submission #877205

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
877205	2023-11-23 03:40:02	SyruLoveNewTechnology	Rigged Roads (NOI19_riggedroads)	C++14	100 / 100	206 ms	39740 KiB

riggedroads

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//SyruLoveNewTechnology
#include<bits/stdc++.h>
using namespace std;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int rand(const int &l, const int &r) {
    return rng() % (r - l + 1) + l;
}
void fre() {
    if(fopen("ZONING.inp", "r")) {
        freopen("ZONING.inp", "r", stdin);
        freopen("ZONING.out", "w", stdout);
    }
    ios_base::sync_with_stdio(false);
    cin.tie(0);
}
const int MAX = 300005;
int N, M;
int a[MAX], b[MAX];
int r1[MAX];
int w[MAX];
int par[MAX];
int p[15];
bool check[MAX];
int parent[MAX];
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

riggedroads.cpp:167:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  167 | main() {
      | ^~~~
riggedroads.cpp: In function 'void fre()':
riggedroads.cpp:14:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |         freopen("ZONING.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
riggedroads.cpp:15:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |         freopen("ZONING.out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 19 / 19
• Subtask 3: 9 / 9
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 12 / 12
• Subtask 7: 32 / 32