Submission #1091822

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1091822	2024-09-22 09:53:29	modwwe	Robots (APIO13_robots)	C++17	0 / 100	2 ms	348 KiB

robots

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#include<bits/stdc++.h>
using namespace std;
#define all(fl) fl.begin(),fl.end()
#define pb push_back
#define fi first
#define se second
#define for1(i,j,k) for(int i=j;i<=k;i++)
#define for2(i,j,k) for(int i=j;i>=k;i--)
#define for3(i,j,k,l) for(int i=j;i<=k;i+=l)
#define lb lower_bound
#define ub upper_bound
#define sz(a) (int)a.size()
#define pii pair<int,int>
#define pli pair<long long,int>
#define gcd __gcd
#define lcm(x,y) x*y/__gcd(x,y)
const int maxn=2e3+9;
int a[maxn];
int f[maxn][maxn];
int mx[maxn][maxn];
int n,k;
int cal(int l,int r)
{
    if (l>r)return 0;
    if (f[l][r]!=-1)return f[l][r];
    int pos=mx[l][r];//min pos
    int ans=0;
    for1(i,max(1,pos-k+1),min(pos,n-k+1)) //just <=n
    {
        int l1=max(i,l),r1=min(r,i+k-1);
 
 
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Compilation message (stderr)

robots.cpp: In function 'int main()':
robots.cpp:91:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   91 |     freopen("test.inp","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
robots.cpp:92:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   92 |     freopen("test.ans","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 30
• Subtask 4: 0 / 40