#include <bits/stdc++.h>
#define mp make_pair
#define pb push_back
#define X first
#define Y second
#define y0 y12
#define y1 y22
#define INF 987654321987654321
#define PI 3.141592653589793238462643383279502884
#define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
#define fdn(i,a,b,c) for(int (i)=(a);(i)>=(b);(i)-=(c))
#define MEM0(a) memset((a),0,sizeof(a))
#define MEM_1(a) memset((a),-1,sizeof(a))
#define ALL(a) a.begin(),a.end()
#define COMPRESS(a) sort(ALL(a));a.resize(unique(ALL(a))-a.begin())
#define SYNC ios_base::sync_with_stdio(false);cin.tie(0)
using namespace std;
typedef long long ll;
typedef long double ld;
typedef double db;
typedef unsigned int uint;
typedef unsigned long long ull;
typedef pair<int, int> Pi;
typedef pair<ll, ll> Pll;
typedef pair<ld, ld> Pd;
typedef vector<int> Vi;
typedef vector<ll> Vll;
typedef vector<ld> Vd;
typedef vector<Pi> VPi;
typedef vector<Pll> VPll;
typedef vector<Pd> VPd;
typedef tuple<int, int, int> iii;
typedef tuple<int, int, int, int> iiii;
typedef tuple<ll, ll, ll> LLL;
typedef vector<iii> Viii;
typedef vector<LLL> VLLL;
typedef complex<double> base;
const int MOD = 1000000007;
ll POW(ll a, ll b, ll MMM = MOD) { ll ret = 1; for (; b; b >>= 1, a = (a*a) % MMM)if (b & 1)ret = (ret*a) % MMM; return ret; }
int dx[] = { 0,1,0,-1,1,1,-1,-1 }, dy[] = { 1,0,-1,0,1,-1,1,-1 };
int ddx[] = { -1,-2,1,-2,2,-1,2,1 }, ddy[] = { -2,-1,-2,1,-1,2,1,2 };
Vi v[200001];
int h[200001];
ll c[200001];
ll d[5001][5001];
ll go(int N,int P){
if(v[N].empty()){
if(h[N]>=P)return 0;
return c[N];
}
ll &ret=d[N][P];
if(~ret)return ret;
ret=INF;
ll tmp=0;
if(h[N]<P){
for(int next:v[N]){
tmp+=go(next,P);
}
return ret=tmp+c[N];
}
for(int next:v[N]){
tmp+=go(next,P);
}
ret=min(ret,tmp+c[N]);
tmp=0;
for(int next:v[N]){
tmp+=go(next,h[N]);
}
ret=min(ret,tmp);
return ret;
}
int main(){
MEM_1(d);
int n;
scanf("%d",&n);
Vi vv={0};
fup(i,1,n,1){
int x;
scanf("%d%d%lld",&x,&h[i],&c[i]);
if(i!=x)v[x].pb(i);
vv.pb(h[i]);
}
COMPRESS(vv);
fup(i,1,n,1)h[i]=lower_bound(ALL(vv),h[i])-vv.begin();
printf("%lld\n",go(1,1));
}
Compilation message
worst_reporter2.cpp: In function 'int main()':
worst_reporter2.cpp:10:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
| ^
worst_reporter2.cpp:78:2: note: in expansion of macro 'fup'
78 | fup(i,1,n,1){
| ^~~
worst_reporter2.cpp:10:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
| ^
worst_reporter2.cpp:85:2: note: in expansion of macro 'fup'
85 | fup(i,1,n,1)h[i]=lower_bound(ALL(vv),h[i])-vv.begin();
| ^~~
worst_reporter2.cpp:76:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
76 | scanf("%d",&n);
| ~~~~~^~~~~~~~~
worst_reporter2.cpp:80:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
80 | scanf("%d%d%lld",&x,&h[i],&c[i]);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
97 ms |
200772 KB |
Output is correct |
2 |
Correct |
94 ms |
200748 KB |
Output is correct |
3 |
Correct |
95 ms |
200740 KB |
Output is correct |
4 |
Correct |
94 ms |
200716 KB |
Output is correct |
5 |
Correct |
99 ms |
201012 KB |
Output is correct |
6 |
Correct |
99 ms |
201024 KB |
Output is correct |
7 |
Correct |
98 ms |
201028 KB |
Output is correct |
8 |
Correct |
98 ms |
201004 KB |
Output is correct |
9 |
Correct |
99 ms |
200944 KB |
Output is correct |
10 |
Correct |
98 ms |
201028 KB |
Output is correct |
11 |
Correct |
95 ms |
201000 KB |
Output is correct |
12 |
Correct |
1089 ms |
201496 KB |
Output is correct |
13 |
Correct |
102 ms |
201392 KB |
Output is correct |
14 |
Correct |
540 ms |
201416 KB |
Output is correct |
15 |
Correct |
108 ms |
201288 KB |
Output is correct |
16 |
Correct |
99 ms |
201032 KB |
Output is correct |
17 |
Correct |
97 ms |
201040 KB |
Output is correct |
18 |
Correct |
95 ms |
201028 KB |
Output is correct |
19 |
Correct |
377 ms |
201140 KB |
Output is correct |
20 |
Correct |
103 ms |
201276 KB |
Output is correct |
21 |
Correct |
95 ms |
201216 KB |
Output is correct |
22 |
Correct |
95 ms |
200960 KB |
Output is correct |
23 |
Correct |
97 ms |
201028 KB |
Output is correct |
24 |
Correct |
404 ms |
201256 KB |
Output is correct |
25 |
Correct |
105 ms |
201160 KB |
Output is correct |
26 |
Correct |
495 ms |
201504 KB |
Output is correct |
27 |
Correct |
263 ms |
201092 KB |
Output is correct |
28 |
Correct |
470 ms |
201312 KB |
Output is correct |
29 |
Correct |
686 ms |
201388 KB |
Output is correct |
30 |
Correct |
491 ms |
201284 KB |
Output is correct |
31 |
Correct |
514 ms |
201284 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
97 ms |
200772 KB |
Output is correct |
2 |
Correct |
94 ms |
200748 KB |
Output is correct |
3 |
Correct |
95 ms |
200740 KB |
Output is correct |
4 |
Correct |
94 ms |
200716 KB |
Output is correct |
5 |
Correct |
99 ms |
201012 KB |
Output is correct |
6 |
Correct |
99 ms |
201024 KB |
Output is correct |
7 |
Correct |
98 ms |
201028 KB |
Output is correct |
8 |
Correct |
98 ms |
201004 KB |
Output is correct |
9 |
Correct |
99 ms |
200944 KB |
Output is correct |
10 |
Correct |
98 ms |
201028 KB |
Output is correct |
11 |
Correct |
95 ms |
201000 KB |
Output is correct |
12 |
Correct |
1089 ms |
201496 KB |
Output is correct |
13 |
Correct |
102 ms |
201392 KB |
Output is correct |
14 |
Correct |
540 ms |
201416 KB |
Output is correct |
15 |
Correct |
108 ms |
201288 KB |
Output is correct |
16 |
Correct |
99 ms |
201032 KB |
Output is correct |
17 |
Correct |
97 ms |
201040 KB |
Output is correct |
18 |
Correct |
95 ms |
201028 KB |
Output is correct |
19 |
Correct |
377 ms |
201140 KB |
Output is correct |
20 |
Correct |
103 ms |
201276 KB |
Output is correct |
21 |
Correct |
95 ms |
201216 KB |
Output is correct |
22 |
Correct |
95 ms |
200960 KB |
Output is correct |
23 |
Correct |
97 ms |
201028 KB |
Output is correct |
24 |
Correct |
404 ms |
201256 KB |
Output is correct |
25 |
Correct |
105 ms |
201160 KB |
Output is correct |
26 |
Correct |
495 ms |
201504 KB |
Output is correct |
27 |
Correct |
263 ms |
201092 KB |
Output is correct |
28 |
Correct |
470 ms |
201312 KB |
Output is correct |
29 |
Correct |
686 ms |
201388 KB |
Output is correct |
30 |
Correct |
491 ms |
201284 KB |
Output is correct |
31 |
Correct |
514 ms |
201284 KB |
Output is correct |
32 |
Correct |
98 ms |
200976 KB |
Output is correct |
33 |
Runtime error |
457 ms |
424800 KB |
Execution killed with signal 11 |
34 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
97 ms |
200772 KB |
Output is correct |
2 |
Correct |
94 ms |
200748 KB |
Output is correct |
3 |
Correct |
95 ms |
200740 KB |
Output is correct |
4 |
Correct |
94 ms |
200716 KB |
Output is correct |
5 |
Correct |
99 ms |
201012 KB |
Output is correct |
6 |
Correct |
99 ms |
201024 KB |
Output is correct |
7 |
Correct |
98 ms |
201028 KB |
Output is correct |
8 |
Correct |
98 ms |
201004 KB |
Output is correct |
9 |
Correct |
99 ms |
200944 KB |
Output is correct |
10 |
Correct |
98 ms |
201028 KB |
Output is correct |
11 |
Correct |
95 ms |
201000 KB |
Output is correct |
12 |
Correct |
1089 ms |
201496 KB |
Output is correct |
13 |
Correct |
102 ms |
201392 KB |
Output is correct |
14 |
Correct |
540 ms |
201416 KB |
Output is correct |
15 |
Correct |
108 ms |
201288 KB |
Output is correct |
16 |
Correct |
99 ms |
201032 KB |
Output is correct |
17 |
Correct |
97 ms |
201040 KB |
Output is correct |
18 |
Correct |
95 ms |
201028 KB |
Output is correct |
19 |
Correct |
377 ms |
201140 KB |
Output is correct |
20 |
Correct |
103 ms |
201276 KB |
Output is correct |
21 |
Correct |
95 ms |
201216 KB |
Output is correct |
22 |
Correct |
95 ms |
200960 KB |
Output is correct |
23 |
Correct |
97 ms |
201028 KB |
Output is correct |
24 |
Correct |
404 ms |
201256 KB |
Output is correct |
25 |
Correct |
105 ms |
201160 KB |
Output is correct |
26 |
Correct |
495 ms |
201504 KB |
Output is correct |
27 |
Correct |
263 ms |
201092 KB |
Output is correct |
28 |
Correct |
470 ms |
201312 KB |
Output is correct |
29 |
Correct |
686 ms |
201388 KB |
Output is correct |
30 |
Correct |
491 ms |
201284 KB |
Output is correct |
31 |
Correct |
514 ms |
201284 KB |
Output is correct |
32 |
Correct |
98 ms |
200976 KB |
Output is correct |
33 |
Runtime error |
457 ms |
424800 KB |
Execution killed with signal 11 |
34 |
Halted |
0 ms |
0 KB |
- |