Submission #1169300

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1169300	2025-03-18 13:24:06	sasde	Valley (BOI19_valley)	C++20	100 / 100	131 ms	58896 KiB

valley

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#include<bits/stdc++.h>
#define int long long
#define str string
#define task "strdel"
#define ii pair<int,int>
#define iii pair<int,ii>
#define iv pair<ii,ii>
#define se second
#define fi first
#define ffi fi.fi
#define sfi se.fi
#define sse se.se
#define fse fi.se
#define lt(i, c, d) for(int i = c; i <= d; ++i)
#define fl(i, c, d) for(int i = d; i >= c; --i)
#define pb push_back
#define emb emplace_back
#define em emplace
using namespace std;
const int N=1e5+5,lg=20,mod=1e9+7;
mt19937 rd(chrono::steady_clock::now().time_since_epoch().count());
int Rand(int u,int v){
 return u+rd()%(v-u+1);
}
int h[N],up[N][lg+5];
int n,S,q,e,g[N],tin[N],tout[N],t;
long long k[N],f[N][lg+5],d[N];
vector<ii>a[N];
void dfs(int u,int cha){
  // cout <<u<<" ";
 
 
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Compilation message (stderr)

valley.cpp:115:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  115 | main()
      | ^~~~
valley.cpp: In function 'int main()':
valley.cpp:122:14: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  122 |       freopen(task".inp","r",stdin);
      |       ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
valley.cpp:123:14: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  123 |       freopen(task".out","w",stdout);
      |       ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 27 / 27
• Subtask 3: 23 / 23
• Subtask 4: 41 / 41