| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 296140 |
2020-09-10T10:21:11 Z |
Pyqe |
Power Plant (JOI20_power) |
C++14 |
|
426 ms |
38152 KB |
#include <bits/stdc++.h>
using namespace std;
long long n,dp[200069];
bitset<200069> a,vtd;
vector<long long> al[200069],dpl[200069];
void bd(long long x)
{
long long i,sz=al[x].size(),l;
vtd[x]=1;
dp[x]=-a[x];
for(i=0;i<sz;i++)
{
l=al[x][i];
if(!vtd[l])
{
bd(l);
dp[x]+=max(dp[l],(long long)a[l]);
}
}
}
void bd2(long long x,long long w)
{
long long i,sz=al[x].size(),l;
vtd[x]=1;
for(i=0;i<sz;i++)
{
l=al[x][i];
if(!vtd[l])
{
dpl[x][i]=max(dp[l],(long long)a[l]);
bd2(l,max(w+dp[x]-dpl[x][i],(long long)a[x]));
}
else
{
dpl[x][i]=w;
}
}
}
int main()
{
long long i,j,k,l,sz,sm,z,c=0;
string s;
scanf("%lld",&n);
for(i=0;i<n-1;i++)
{
scanf("%lld%lld",&k,&l);
al[k].push_back(l);
al[l].push_back(k);
dpl[k].push_back(0);
dpl[l].push_back(0);
}
cin>>s;
for(i=1;i<=n;i++)
{
a[i]=s[i-1]-'0';
c+=a[i];
}
z=2*(c>=2);
bd(1);
vtd.reset();
bd2(1,0);
for(i=1;i<=n;i++)
{
sm=-a[i];
sz=dpl[i].size();
for(j=0;j<sz;j++)
{
sm+=dpl[i][j];
}
z=max(z,max(sm,(long long)a[i]));
}
printf("%lld\n",z);
}
Compilation message
power.cpp: In function 'int main()':
power.cpp:51:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
51 | scanf("%lld",&n);
| ~~~~~^~~~~~~~~~~
power.cpp:54:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
54 | scanf("%lld%lld",&k,&l);
| ~~~~~^~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 2 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 3 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 4 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 5 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 6 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 7 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 8 |
Correct |
8 ms |
9728 KB |
Output is correct |
| 9 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 10 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 11 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 12 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 13 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 14 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 15 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 16 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 17 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 18 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 19 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 20 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 21 |
Correct |
7 ms |
9728 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 2 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 3 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 4 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 5 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 6 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 7 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 8 |
Correct |
8 ms |
9728 KB |
Output is correct |
| 9 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 10 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 11 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 12 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 13 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 14 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 15 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 16 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 17 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 18 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 19 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 20 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 21 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 22 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 23 |
Correct |
8 ms |
9964 KB |
Output is correct |
| 24 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 25 |
Correct |
9 ms |
9984 KB |
Output is correct |
| 26 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 27 |
Correct |
9 ms |
9984 KB |
Output is correct |
| 28 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 29 |
Correct |
10 ms |
9984 KB |
Output is correct |
| 30 |
Correct |
10 ms |
9984 KB |
Output is correct |
| 31 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 32 |
Correct |
9 ms |
9984 KB |
Output is correct |
| 33 |
Correct |
9 ms |
9984 KB |
Output is correct |
| 34 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 35 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 36 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 37 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 38 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 39 |
Correct |
9 ms |
9984 KB |
Output is correct |
| 40 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 41 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 42 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 43 |
Correct |
9 ms |
9984 KB |
Output is correct |
| 44 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 45 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 46 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 47 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 48 |
Correct |
9 ms |
9984 KB |
Output is correct |
| 49 |
Correct |
9 ms |
9984 KB |
Output is correct |
| 50 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 51 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 52 |
Correct |
9 ms |
10016 KB |
Output is correct |
| 53 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 54 |
Correct |
8 ms |
10008 KB |
Output is correct |
| 55 |
Correct |
9 ms |
9984 KB |
Output is correct |
| 56 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 57 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 58 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 59 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 60 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 61 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 62 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 63 |
Correct |
8 ms |
9984 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 2 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 3 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 4 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 5 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 6 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 7 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 8 |
Correct |
8 ms |
9728 KB |
Output is correct |
| 9 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 10 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 11 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 12 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 13 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 14 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 15 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 16 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 17 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 18 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 19 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 20 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 21 |
Correct |
7 ms |
9728 KB |
Output is correct |
| 22 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 23 |
Correct |
8 ms |
9964 KB |
Output is correct |
| 24 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 25 |
Correct |
9 ms |
9984 KB |
Output is correct |
| 26 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 27 |
Correct |
9 ms |
9984 KB |
Output is correct |
| 28 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 29 |
Correct |
10 ms |
9984 KB |
Output is correct |
| 30 |
Correct |
10 ms |
9984 KB |
Output is correct |
| 31 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 32 |
Correct |
9 ms |
9984 KB |
Output is correct |
| 33 |
Correct |
9 ms |
9984 KB |
Output is correct |
| 34 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 35 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 36 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 37 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 38 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 39 |
Correct |
9 ms |
9984 KB |
Output is correct |
| 40 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 41 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 42 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 43 |
Correct |
9 ms |
9984 KB |
Output is correct |
| 44 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 45 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 46 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 47 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 48 |
Correct |
9 ms |
9984 KB |
Output is correct |
| 49 |
Correct |
9 ms |
9984 KB |
Output is correct |
| 50 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 51 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 52 |
Correct |
9 ms |
10016 KB |
Output is correct |
| 53 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 54 |
Correct |
8 ms |
10008 KB |
Output is correct |
| 55 |
Correct |
9 ms |
9984 KB |
Output is correct |
| 56 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 57 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 58 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 59 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 60 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 61 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 62 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 63 |
Correct |
8 ms |
9984 KB |
Output is correct |
| 64 |
Correct |
370 ms |
26508 KB |
Output is correct |
| 65 |
Correct |
369 ms |
26572 KB |
Output is correct |
| 66 |
Correct |
390 ms |
26508 KB |
Output is correct |
| 67 |
Correct |
386 ms |
26632 KB |
Output is correct |
| 68 |
Correct |
370 ms |
26480 KB |
Output is correct |
| 69 |
Correct |
368 ms |
26504 KB |
Output is correct |
| 70 |
Correct |
380 ms |
26504 KB |
Output is correct |
| 71 |
Correct |
376 ms |
26448 KB |
Output is correct |
| 72 |
Correct |
378 ms |
26644 KB |
Output is correct |
| 73 |
Correct |
426 ms |
37000 KB |
Output is correct |
| 74 |
Correct |
405 ms |
37000 KB |
Output is correct |
| 75 |
Correct |
377 ms |
28808 KB |
Output is correct |
| 76 |
Correct |
393 ms |
29064 KB |
Output is correct |
| 77 |
Correct |
391 ms |
26432 KB |
Output is correct |
| 78 |
Correct |
389 ms |
26500 KB |
Output is correct |
| 79 |
Correct |
385 ms |
26536 KB |
Output is correct |
| 80 |
Correct |
375 ms |
26504 KB |
Output is correct |
| 81 |
Correct |
308 ms |
26716 KB |
Output is correct |
| 82 |
Correct |
344 ms |
26472 KB |
Output is correct |
| 83 |
Correct |
412 ms |
31496 KB |
Output is correct |
| 84 |
Correct |
415 ms |
33672 KB |
Output is correct |
| 85 |
Correct |
397 ms |
33416 KB |
Output is correct |
| 86 |
Correct |
384 ms |
27860 KB |
Output is correct |
| 87 |
Correct |
373 ms |
27400 KB |
Output is correct |
| 88 |
Correct |
369 ms |
27524 KB |
Output is correct |
| 89 |
Correct |
374 ms |
27536 KB |
Output is correct |
| 90 |
Correct |
365 ms |
27296 KB |
Output is correct |
| 91 |
Correct |
370 ms |
27524 KB |
Output is correct |
| 92 |
Correct |
368 ms |
27912 KB |
Output is correct |
| 93 |
Correct |
380 ms |
29800 KB |
Output is correct |
| 94 |
Correct |
364 ms |
31456 KB |
Output is correct |
| 95 |
Correct |
360 ms |
30180 KB |
Output is correct |
| 96 |
Correct |
367 ms |
28316 KB |
Output is correct |
| 97 |
Correct |
375 ms |
27020 KB |
Output is correct |
| 98 |
Correct |
341 ms |
26760 KB |
Output is correct |
| 99 |
Correct |
368 ms |
26528 KB |
Output is correct |
| 100 |
Correct |
369 ms |
29488 KB |
Output is correct |
| 101 |
Correct |
366 ms |
27144 KB |
Output is correct |
| 102 |
Correct |
333 ms |
26628 KB |
Output is correct |
| 103 |
Correct |
369 ms |
26888 KB |
Output is correct |
| 104 |
Correct |
234 ms |
27596 KB |
Output is correct |
| 105 |
Correct |
424 ms |
33800 KB |
Output is correct |
| 106 |
Correct |
233 ms |
27604 KB |
Output is correct |
| 107 |
Correct |
224 ms |
27604 KB |
Output is correct |
| 108 |
Correct |
409 ms |
37948 KB |
Output is correct |
| 109 |
Correct |
228 ms |
27604 KB |
Output is correct |
| 110 |
Correct |
407 ms |
38152 KB |
Output is correct |
| 111 |
Correct |
353 ms |
26376 KB |
Output is correct |
