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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#387654 | #7905. Ticket to Ride | ciuim | WA | 2ms | 3956kb | C++14 | 2.0kb | 2024-04-12 18:17:39 | 2024-04-12 18:17:40 |
Judging History
answer
#include <cstdio>
#include <cmath>
#include <iomanip>
#include <iostream>
#include <cstring>
#include <array>
#include <algorithm>
#include <queue>
#include <vector>
#include <bitset>
#include <ctime>
#include <cstdlib>
#include <random>
#include <set>
#include <ctime>
#include <map>
#include <stack>
#include <unordered_map>
#define ll long long
#define ull unsigned long long
#define reg register
#define fo(a,b,c) for(reg ll a=b;a<=c;++a)
#define re(a,b,c) for(reg ll a=b;a>=c;--a)
#define pii pair<ll,ll>
#define fi first
#define pb push_back
#define se second
#define ite set<ll> ::iterator
using namespace std;
//const ll mod=998244353;
inline ll gi()
{
ll x = 0, f = 1;
char ch = getchar();
while(ch < '0' || ch > '9')
{
if (ch == '-')
f = -1;
ch = getchar();
}
while(ch >= '0' && ch <= '9')
{
x = (x<<1) + (x<<3) + (ch^48);
ch = getchar();
}
return x * f;
}
ll _=1;
const ll inf=1e17;
const ll N=10005;
ll dp[N],ans[N],nxt[N],fa[N],val[N],f[N];
vector<pii> vec[N];
ll fd(ll x)
{
if(fa[x]==x) return x;
return fa[x]=fd(fa[x]);
}
void add(ll st,ll ed,ll w)
{
val[st]+=w;
while(nxt[st]!=ed)
{
if(val[st]+dp[st]>dp[nxt[st]])
{
val[st]+=val[nxt[st]];
fa[nxt[st]]=st;
nxt[st]=nxt[nxt[st]];
}
else break;
}
}
void sol()
{
ll n=gi(),m=gi();
fo(i,1,m)
{
ll l=gi()+1,r=gi(),w=gi();
vec[r].pb({l,w});
}
fo(i,0,n) ans[i]=0,f[i]=-inf;
fo(j,0,n)
{
fo(i,0,n)
{
dp[i]=-inf;
fa[i]=i;
val[i]=0;
nxt[i]=i+1;
}
dp[j]=0;
fo(i,j+1,n)
{
for(pii p:vec[i])
{
if(p.fi<=j) continue;
add(p.fi-1,i,p.se);
}
dp[i]=max(f[i-1],dp[fd(i-1)]+val[fd(i-1)]);
}
fo(i,j+1,n)
{
ans[i-j]=max(ans[i-j],dp[i]);
}
fo(i,0,n) f[i]=dp[i];
}
fo(i,1,n)
{
ans[i]=max(ans[i-1],ans[i]);
cout<<ans[i]<<" ";
vec[i].clear();
}
}
int main()
{
_=gi();
while(_--)
{
sol();
printf("\n");
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 3920kb
input:
2 4 3 0 2 3 3 4 2 0 3 1 3 1 1 3 100
output:
2 3 5 6 0 100 100
result:
ok 2 lines
Test #2:
score: -100
Wrong Answer
time: 2ms
memory: 3956kb
input:
1000 2 9 0 2 396628655 1 2 268792718 0 2 16843338 1 2 717268783 0 1 693319712 0 1 856168102 1 2 407246545 1 2 527268921 0 1 536134606 6 2 2 5 451394766 0 5 695984050 9 7 0 6 73936815 2 9 505041862 4 5 223718927 5 7 179262261 3 5 449258178 0 5 493128 0 3 994723920 6 6 3 5 433389755 2 4 773727734 4 5 ...
output:
2085622420 2499094413 0 0 451394766 451394766 1147378816 1147378816 223718927 672977105 994723920 1218442847 1668194153 1742130968 1742130968 1742130968 1742130968 127680943 773727734 901408677 1794066638 1794066638 1794066638 976357580 1594205360 2103791342 2721639122 2798805018 3321168631 3321...
result:
wrong answer 1st lines differ - expected: '2085622420 4419671380', found: '2085622420 2499094413 '