Submission #1094946

#	Time	Username	Problem	Language	Result	Execution time	Memory
1094946		modwwe	Worst Reporter 4 (JOI21_worst_reporter4)	C++17	0 / 100	600 ms	524288 KiB

worst_reporter2

#pragma GCC optimize("Ofast,unroll-loops")
#include<bits/stdc++.h>
#define int long long
//#define ll long long
#define down cout<<'\n';
#define debug cout<<" cucuucucuuu",down
#define NHP     ios_base::sync_with_stdio(0);cout.tie(0);cin.tie(0);
#define modwwe  int t;cin>>t; while(t--)
#define bit(i,j) (i>>j&1)
#define sobit(a) __builtin_popcountll(a)
#define task "test"
#define fin(x) freopen(x".inp","r",stdin)
#define fou(x) freopen(x".out","w",stdout)
#define pb push_back
#define checktime   cerr << (double)clock() / CLOCKS_PER_SEC * 1000  << " ms";
using namespace std;
#define getchar_unlocked getchar

inline int scan()
{
    char c = getchar_unlocked();
    int x = 0;
    while (c < '0' || c > '9')
    {
        c = getchar_unlocked();
    }
    while (c >= '0' && c <= '9')
    {
        x = (x << 1) + (x << 3) + c - '0';
        c = getchar_unlocked();
    }
    return x;
}

void phongbeo();
const int inf = 1e17;
const int mod2 = 1e9 + 7;
const int  mod1 = 998244353;
struct icd
{
    long double a;
    int b;
};
struct ib
{
    int a;
    int b;
};
struct ic
{
    int a, b, c;
};
struct id
{
    int a, b, c, d;
};
struct ie
{
    int a, b, c, d, e;

};

int n, m, s1, s2, s4, s3, sf, k, s5, s6, mx, s7, s8, s9, mx2, res, dem2 = 0, dem = 0, s33, dem3, dem4, l, r, mid, l2, r2, center;
int  i, s10, s12,k1,k2,s11;
int kk;
int el = 19;
main()
{
    if(fopen(task".inp","r"))
    {
        fin(task);
        fou(task);
    }
    NHP
    /// cin>>s1;
///modwwe
    phongbeo();
    // checktime
}
int dp[5001][5001];
int dp2[5003];
int a[5001];
int b[5001];
vector<int> v[5001],v2;
unordered_set<int> s[5001];
void dfs(int x)
{

    s[x].insert(b[x]);
    s[x].insert(5000);
    for(auto f:v[x])
    {
        dfs(f);
        for(auto y:s[f])
            s[x].insert(y);
    }
    for(auto j:s[x])
        dp[x][j]+=a[x];
    dp[x][b[x]]-=a[x];
    for(int j=1; j<=5000; j++)
    {
        if(s[x].find(j)==s[x].end())
            dp[x][j]=inf;
    }
    for(auto f:v[x])
    {
        dp2[5001]=inf;
        for(int j=5000; j>=1; j--)
        {
            dp2[j]=min(dp2[j+1],dp[f][j]);
            if(dp2[j]!=inf)
                   dp[x][j]+=dp2[j];
        }
    }
    if(x==1)
    {
        s4=inf;
        for(auto j:s[x])
            s4=min(s4,dp[1][j]);
    }
}
void phongbeo()
{
    cin>>n;
    for(int i=1; i<=n; i++)
    {
        cin>>l>>b[i]>>a[i];
        if(i!=1) v[l].pb(i);
        v2.pb(b[i]);
    }
    sort(v2.begin(),v2.end());
    for(int i=1; i<=n; i++)
        b[i]=lower_bound(v2.begin(),v2.end(),b[i])-v2.begin()+1;
    dfs(1);
    cout<<s4;
}

Compilation message (stderr)

worst_reporter2.cpp:67:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   67 | main()
      | ^~~~
worst_reporter2.cpp: In function 'int main()':
worst_reporter2.cpp:12:23: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 | #define fin(x) freopen(x".inp","r",stdin)
      |                ~~~~~~~^~~~~~~~~~~~~~~~~~~
worst_reporter2.cpp:71:9: note: in expansion of macro 'fin'
   71 |         fin(task);
      |         ^~~
worst_reporter2.cpp:13:23: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 | #define fou(x) freopen(x".out","w",stdout)
      |                ~~~~~~~^~~~~~~~~~~~~~~~~~~~
worst_reporter2.cpp:72:9: note: in expansion of macro 'fou'
   72 |         fou(task);
      |         ^~~

• Subtask 1: 0 / 14
• Subtask 2: 0 / 65
• Subtask 3: 0 / 21