#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);
s[f].clear();
}
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
worst_reporter2.cpp:67:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
67 | main()
| ^~~~
worst_reporter2.cpp: In function 'void dfs(long long int)':
worst_reporter2.cpp:94:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
94 | for(auto y:s[f])
| ^~~
worst_reporter2.cpp:96:13: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
96 | s[f].clear();
| ^
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);
| ^~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
864 KB |
Output is correct |
2 |
Correct |
1 ms |
860 KB |
Output is correct |
3 |
Correct |
0 ms |
860 KB |
Output is correct |
4 |
Correct |
0 ms |
860 KB |
Output is correct |
5 |
Correct |
165 ms |
197972 KB |
Output is correct |
6 |
Correct |
160 ms |
197504 KB |
Output is correct |
7 |
Correct |
161 ms |
197456 KB |
Output is correct |
8 |
Correct |
173 ms |
197744 KB |
Output is correct |
9 |
Correct |
160 ms |
197460 KB |
Output is correct |
10 |
Correct |
163 ms |
197356 KB |
Output is correct |
11 |
Correct |
151 ms |
197464 KB |
Output is correct |
12 |
Correct |
1031 ms |
332628 KB |
Output is correct |
13 |
Correct |
195 ms |
198224 KB |
Output is correct |
14 |
Correct |
741 ms |
267880 KB |
Output is correct |
15 |
Correct |
224 ms |
202324 KB |
Output is correct |
16 |
Correct |
165 ms |
197980 KB |
Output is correct |
17 |
Correct |
155 ms |
197584 KB |
Output is correct |
18 |
Correct |
148 ms |
197456 KB |
Output is correct |
19 |
Correct |
679 ms |
265040 KB |
Output is correct |
20 |
Correct |
184 ms |
200020 KB |
Output is correct |
21 |
Correct |
153 ms |
197716 KB |
Output is correct |
22 |
Correct |
149 ms |
197500 KB |
Output is correct |
23 |
Correct |
146 ms |
197412 KB |
Output is correct |
24 |
Correct |
887 ms |
297268 KB |
Output is correct |
25 |
Correct |
185 ms |
199908 KB |
Output is correct |
26 |
Correct |
940 ms |
332688 KB |
Output is correct |
27 |
Correct |
423 ms |
238048 KB |
Output is correct |
28 |
Correct |
672 ms |
274124 KB |
Output is correct |
29 |
Correct |
867 ms |
306124 KB |
Output is correct |
30 |
Correct |
596 ms |
267856 KB |
Output is correct |
31 |
Correct |
646 ms |
267864 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
864 KB |
Output is correct |
2 |
Correct |
1 ms |
860 KB |
Output is correct |
3 |
Correct |
0 ms |
860 KB |
Output is correct |
4 |
Correct |
0 ms |
860 KB |
Output is correct |
5 |
Correct |
165 ms |
197972 KB |
Output is correct |
6 |
Correct |
160 ms |
197504 KB |
Output is correct |
7 |
Correct |
161 ms |
197456 KB |
Output is correct |
8 |
Correct |
173 ms |
197744 KB |
Output is correct |
9 |
Correct |
160 ms |
197460 KB |
Output is correct |
10 |
Correct |
163 ms |
197356 KB |
Output is correct |
11 |
Correct |
151 ms |
197464 KB |
Output is correct |
12 |
Correct |
1031 ms |
332628 KB |
Output is correct |
13 |
Correct |
195 ms |
198224 KB |
Output is correct |
14 |
Correct |
741 ms |
267880 KB |
Output is correct |
15 |
Correct |
224 ms |
202324 KB |
Output is correct |
16 |
Correct |
165 ms |
197980 KB |
Output is correct |
17 |
Correct |
155 ms |
197584 KB |
Output is correct |
18 |
Correct |
148 ms |
197456 KB |
Output is correct |
19 |
Correct |
679 ms |
265040 KB |
Output is correct |
20 |
Correct |
184 ms |
200020 KB |
Output is correct |
21 |
Correct |
153 ms |
197716 KB |
Output is correct |
22 |
Correct |
149 ms |
197500 KB |
Output is correct |
23 |
Correct |
146 ms |
197412 KB |
Output is correct |
24 |
Correct |
887 ms |
297268 KB |
Output is correct |
25 |
Correct |
185 ms |
199908 KB |
Output is correct |
26 |
Correct |
940 ms |
332688 KB |
Output is correct |
27 |
Correct |
423 ms |
238048 KB |
Output is correct |
28 |
Correct |
672 ms |
274124 KB |
Output is correct |
29 |
Correct |
867 ms |
306124 KB |
Output is correct |
30 |
Correct |
596 ms |
267856 KB |
Output is correct |
31 |
Correct |
646 ms |
267864 KB |
Output is correct |
32 |
Runtime error |
231 ms |
270932 KB |
Execution killed with signal 11 |
33 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
864 KB |
Output is correct |
2 |
Correct |
1 ms |
860 KB |
Output is correct |
3 |
Correct |
0 ms |
860 KB |
Output is correct |
4 |
Correct |
0 ms |
860 KB |
Output is correct |
5 |
Correct |
165 ms |
197972 KB |
Output is correct |
6 |
Correct |
160 ms |
197504 KB |
Output is correct |
7 |
Correct |
161 ms |
197456 KB |
Output is correct |
8 |
Correct |
173 ms |
197744 KB |
Output is correct |
9 |
Correct |
160 ms |
197460 KB |
Output is correct |
10 |
Correct |
163 ms |
197356 KB |
Output is correct |
11 |
Correct |
151 ms |
197464 KB |
Output is correct |
12 |
Correct |
1031 ms |
332628 KB |
Output is correct |
13 |
Correct |
195 ms |
198224 KB |
Output is correct |
14 |
Correct |
741 ms |
267880 KB |
Output is correct |
15 |
Correct |
224 ms |
202324 KB |
Output is correct |
16 |
Correct |
165 ms |
197980 KB |
Output is correct |
17 |
Correct |
155 ms |
197584 KB |
Output is correct |
18 |
Correct |
148 ms |
197456 KB |
Output is correct |
19 |
Correct |
679 ms |
265040 KB |
Output is correct |
20 |
Correct |
184 ms |
200020 KB |
Output is correct |
21 |
Correct |
153 ms |
197716 KB |
Output is correct |
22 |
Correct |
149 ms |
197500 KB |
Output is correct |
23 |
Correct |
146 ms |
197412 KB |
Output is correct |
24 |
Correct |
887 ms |
297268 KB |
Output is correct |
25 |
Correct |
185 ms |
199908 KB |
Output is correct |
26 |
Correct |
940 ms |
332688 KB |
Output is correct |
27 |
Correct |
423 ms |
238048 KB |
Output is correct |
28 |
Correct |
672 ms |
274124 KB |
Output is correct |
29 |
Correct |
867 ms |
306124 KB |
Output is correct |
30 |
Correct |
596 ms |
267856 KB |
Output is correct |
31 |
Correct |
646 ms |
267864 KB |
Output is correct |
32 |
Runtime error |
231 ms |
270932 KB |
Execution killed with signal 11 |
33 |
Halted |
0 ms |
0 KB |
- |