oj.uz

Submission #716974

# Submission time Handle Problem Language Result Execution time Memory
716974 2023-03-31T14:57:23 Z onepunchac168 Jakarta Skyscrapers (APIO15_skyscraper) C++17
100 / 100
 257 ms 39124 KB 
// created by Dinh Manh Hung
// onepunchac168
// THPT CHUYEN HA TINH
// HA TINH, VIET NAM
// Master go go

#include <bits/stdc++.h>
using namespace std;

#pragma GCC optimize("O3,unroll-loops,no-stack-protector")
#pragma GCC target("sse4,avx2,fma")
#define task ""
#define ldb long double
#define pb push_back
#define fi first
#define se second
#define pc pop_back()
#define all(x) begin(x),end(x)
#define uniquev(v) v.resize(unique(all(v))-v.begin())
#define FOR(i,a,b) for (int i=a;i<=b;i++)
#define cntbit(v) __builtin_popcountll(v)
#define gcd(a,b) __gcd(a,b)
#define lcm(a,b) ((1LL*a*b)/__gcd(a,b))
#define mask(x) (1LL<<(x))
#define readbit(x,i) ((x>>i)&1)
#define ins insert

typedef int ll;
typedef pair <ll,ll> ii;
typedef pair <ll,ii> iii;
typedef pair <ii,ii> iiii;

ll dx[]= {1,-1,0,0,1,-1,1,-1};
ll dy[]= {0,0,-1,1,1,-1,-1,1};

const ldb PI = acos (-1);
//const ll mod=978846151;
//const ll base=29;
const int maxn=1e6+5;
const int mod=1e9+7;
const char nl = '\n';
inline int ReadInt()
{
    char co;
    for (co = getchar(); co < '0' || co > '9'; co = getchar());
    int xo = co - '0';
    for (co = getchar(); co >= '0' && co <= '9'; co = getchar())
        xo = xo * 10 + co - '0';
    return xo;
}

void WriteInt(int xo)
{
    if (xo > 9)
        WriteInt(xo / 10);
    putchar(xo % 10 + '0');
}
/* END OF TEMPLATE*/

// ================= Solution =================//
ll n,m;
ll b[50005];
ll p[50005];
ll dp[50005][255];
bool fee[50005][255];
ll BLOCK=50;
vector <ll> vt[50005];
ll id=0;
priority_queue< iii,vector <iii> ,greater <iii> > qu;
void optmushnpr()
{
    cin>>n>>m;
    for (int i=0;i<m;i++)
    {
        cin>>b[i]>>p[i];
        if (p[i]<=BLOCK){
            fee[b[i]][p[i]]=1;
        }
        else vt[b[i]].pb(p[i]);
    }
    id=b[1];
    for (int i=0;i<n;i++)
    {
        for (int j=1;j<=BLOCK+1;j++)
        {
            dp[i][j]=1e9+5;
        }
    }
    ll aa=b[0];
    ll bb=(p[0]>BLOCK)? BLOCK+1 : p[0];
    qu.push({0,{aa,bb}});
    dp[aa][bb]=0;
    ll rr=1e9+5;
    while (!qu.empty())
    {
        ll u=qu.top().se.fi;
        ll v=qu.top().se.se;
        qu.pop();
        if (u==id)
        {
            rr=dp[u][v];
            break;
        }
        if (v==BLOCK+1)
        {
            for (auto cnt:vt[u])
            {
                ll id=u,dem=0;
                while (id+cnt<n)
                {
                    id+=cnt;
                    dem++;
                    if (dp[id][v]>dp[u][v]+dem)
                    {
                        dp[id][v]=dp[u][v]+dem;
                        qu.push({dp[id][v],{id,v}});
                    }
                }
                id=u,dem=0;
                while (id-cnt>=0)
                {
                    id-=cnt;
                    dem++;
                    if (dp[id][v]>dp[u][v]+dem)
                    {
                        dp[id][v]=dp[u][v]+dem;
                        qu.push({dp[id][v],{id,v}});
                    }

                }
            }
            for (int i=1;i<=BLOCK;i++)
            {
                if (fee[u][i]==1)
                {
                    if (u+i<n){
                        if (dp[u+i][i]>dp[u][v]+1)
                        {
                            dp[u+i][i]=dp[u][v]+1;
                            qu.push({dp[u+i][i],{u+i,i}});
                        }
                    }
                    if (u-i>=0)
                    {
                        if (dp[u-i][i]>dp[u][v]+1){
                            dp[u-i][i]=dp[u][v]+1;
                            qu.push({dp[u-i][i],{u-i,i}});
                        }
                    }
                }
            }
        }
        else
        {
            if (dp[u][BLOCK+1]>dp[u][v])
            {
                dp[u][BLOCK+1]=dp[u][v];
                qu.push({dp[u][BLOCK+1],{u,BLOCK+1}});
            }
            if (u+v<n)
            {
                if (dp[u+v][v]>dp[u][v]+1)
                {
                    dp[u+v][v]=dp[u][v]+1;
                    qu.push({dp[u+v][v],{u+v,v}});
                }
            }
            if (u-v>=0)
            {
                if (dp[u-v][v]>dp[u][v]+1)
                {
                    dp[u-v][v]=dp[u][v]+1;
                    qu.push({dp[u-v][v],{u-v,v}});
                }
            }
        }

    }
    if (rr==1e9+5)
    {
        cout<<-1;
    }
    else cout<<rr;

}

signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    if (fopen(task".inp","r")){
    freopen(task".inp","r",stdin);
    freopen(task".out","w",stdout);}
    int t;
    t=1;
    //cin>>t;
    while (t--){optmushnpr();}
}

// goodbye see ya

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:192:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  192 |     freopen(task".inp","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
skyscraper.cpp:193:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  193 |     freopen(task".out","w",stdout);}
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 1 ms 1492 KB Output is correct
3 Correct 1 ms 1492 KB Output is correct
4 Correct 1 ms 1492 KB Output is correct
5 Correct 1 ms 1492 KB Output is correct
6 Correct 1 ms 1492 KB Output is correct
7 Correct 1 ms 1492 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 1 ms 1492 KB Output is correct
3 Correct 1 ms 1492 KB Output is correct
4 Correct 1 ms 1492 KB Output is correct
5 Correct 1 ms 1492 KB Output is correct
6 Correct 1 ms 1492 KB Output is correct
7 Correct 1 ms 1492 KB Output is correct
8 Correct 1 ms 1492 KB Output is correct
9 Correct 1 ms 1504 KB Output is correct
10 Correct 1 ms 1620 KB Output is correct
11 Correct 2 ms 1620 KB Output is correct
12 Correct 1 ms 1620 KB Output is correct
13 Correct 1 ms 1620 KB Output is correct
14 Correct 2 ms 1620 KB Output is correct
15 Correct 2 ms 1620 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 1 ms 1492 KB Output is correct
3 Correct 1 ms 1492 KB Output is correct
4 Correct 1 ms 1492 KB Output is correct
5 Correct 1 ms 1536 KB Output is correct
6 Correct 1 ms 1492 KB Output is correct
7 Correct 1 ms 1492 KB Output is correct
8 Correct 1 ms 1492 KB Output is correct
9 Correct 1 ms 1492 KB Output is correct
10 Correct 1 ms 1620 KB Output is correct
11 Correct 2 ms 1620 KB Output is correct
12 Correct 1 ms 1620 KB Output is correct
13 Correct 1 ms 1620 KB Output is correct
14 Correct 2 ms 1620 KB Output is correct
15 Correct 2 ms 1620 KB Output is correct
16 Correct 1 ms 1748 KB Output is correct
17 Correct 2 ms 2388 KB Output is correct
18 Correct 2 ms 3284 KB Output is correct
19 Correct 2 ms 3540 KB Output is correct
20 Correct 4 ms 3924 KB Output is correct
21 Correct 2 ms 2004 KB Output is correct
22 Correct 2 ms 3284 KB Output is correct
23 Correct 2 ms 3156 KB Output is correct
24 Correct 3 ms 3540 KB Output is correct
25 Correct 2 ms 3540 KB Output is correct
26 Correct 2 ms 3540 KB Output is correct
27 Correct 2 ms 3540 KB Output is correct
28 Correct 3 ms 3540 KB Output is correct
29 Correct 8 ms 3580 KB Output is correct
30 Correct 4 ms 3540 KB Output is correct
31 Correct 5 ms 3540 KB Output is correct
32 Correct 4 ms 3540 KB Output is correct
33 Correct 12 ms 3692 KB Output is correct
34 Correct 9 ms 3652 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 1 ms 1492 KB Output is correct
3 Correct 1 ms 1492 KB Output is correct
4 Correct 1 ms 1492 KB Output is correct
5 Correct 1 ms 1492 KB Output is correct
6 Correct 1 ms 1492 KB Output is correct
7 Correct 1 ms 1492 KB Output is correct
8 Correct 1 ms 1492 KB Output is correct
9 Correct 1 ms 1492 KB Output is correct
10 Correct 1 ms 1620 KB Output is correct
11 Correct 1 ms 1620 KB Output is correct
12 Correct 1 ms 1620 KB Output is correct
13 Correct 1 ms 1620 KB Output is correct
14 Correct 2 ms 1620 KB Output is correct
15 Correct 2 ms 1620 KB Output is correct
16 Correct 1 ms 1748 KB Output is correct
17 Correct 2 ms 2388 KB Output is correct
18 Correct 2 ms 3284 KB Output is correct
19 Correct 2 ms 3540 KB Output is correct
20 Correct 2 ms 3924 KB Output is correct
21 Correct 1 ms 2004 KB Output is correct
22 Correct 2 ms 3260 KB Output is correct
23 Correct 2 ms 3156 KB Output is correct
24 Correct 4 ms 3540 KB Output is correct
25 Correct 2 ms 3540 KB Output is correct
26 Correct 3 ms 3540 KB Output is correct
27 Correct 2 ms 3540 KB Output is correct
28 Correct 3 ms 3540 KB Output is correct
29 Correct 8 ms 3540 KB Output is correct
30 Correct 3 ms 3540 KB Output is correct
31 Correct 5 ms 3540 KB Output is correct
32 Correct 4 ms 3552 KB Output is correct
33 Correct 12 ms 3668 KB Output is correct
34 Correct 9 ms 3668 KB Output is correct
35 Correct 7 ms 3796 KB Output is correct
36 Correct 2 ms 2900 KB Output is correct
37 Correct 6 ms 4344 KB Output is correct
38 Correct 8 ms 4564 KB Output is correct
39 Correct 7 ms 4436 KB Output is correct
40 Correct 7 ms 4436 KB Output is correct
41 Correct 8 ms 4564 KB Output is correct
42 Correct 5 ms 3796 KB Output is correct
43 Correct 5 ms 3796 KB Output is correct
44 Correct 5 ms 4180 KB Output is correct
45 Correct 16 ms 4100 KB Output is correct
46 Correct 8 ms 4180 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1492 KB Output is correct
2 Correct 2 ms 1492 KB Output is correct
3 Correct 1 ms 1492 KB Output is correct
4 Correct 1 ms 1492 KB Output is correct
5 Correct 1 ms 1528 KB Output is correct
6 Correct 1 ms 1492 KB Output is correct
7 Correct 1 ms 1492 KB Output is correct
8 Correct 1 ms 1492 KB Output is correct
9 Correct 1 ms 1492 KB Output is correct
10 Correct 1 ms 1632 KB Output is correct
11 Correct 1 ms 1620 KB Output is correct
12 Correct 1 ms 1620 KB Output is correct
13 Correct 1 ms 1620 KB Output is correct
14 Correct 2 ms 1620 KB Output is correct
15 Correct 2 ms 1620 KB Output is correct
16 Correct 1 ms 1748 KB Output is correct
17 Correct 2 ms 2388 KB Output is correct
18 Correct 2 ms 3284 KB Output is correct
19 Correct 2 ms 3540 KB Output is correct
20 Correct 2 ms 3924 KB Output is correct
21 Correct 2 ms 2004 KB Output is correct
22 Correct 2 ms 3336 KB Output is correct
23 Correct 2 ms 3156 KB Output is correct
24 Correct 3 ms 3540 KB Output is correct
25 Correct 2 ms 3540 KB Output is correct
26 Correct 2 ms 3540 KB Output is correct
27 Correct 2 ms 3540 KB Output is correct
28 Correct 3 ms 3540 KB Output is correct
29 Correct 8 ms 3580 KB Output is correct
30 Correct 3 ms 3540 KB Output is correct
31 Correct 5 ms 3572 KB Output is correct
32 Correct 4 ms 3540 KB Output is correct
33 Correct 12 ms 3668 KB Output is correct
34 Correct 8 ms 3668 KB Output is correct
35 Correct 6 ms 3796 KB Output is correct
36 Correct 3 ms 2900 KB Output is correct
37 Correct 6 ms 4360 KB Output is correct
38 Correct 7 ms 4580 KB Output is correct
39 Correct 9 ms 4436 KB Output is correct
40 Correct 7 ms 4440 KB Output is correct
41 Correct 7 ms 4564 KB Output is correct
42 Correct 5 ms 3796 KB Output is correct
43 Correct 5 ms 3796 KB Output is correct
44 Correct 5 ms 4180 KB Output is correct
45 Correct 17 ms 4052 KB Output is correct
46 Correct 9 ms 4180 KB Output is correct
47 Correct 15 ms 16288 KB Output is correct
48 Correct 15 ms 25428 KB Output is correct
49 Correct 16 ms 27512 KB Output is correct
50 Correct 15 ms 29908 KB Output is correct
51 Correct 30 ms 33016 KB Output is correct
52 Correct 30 ms 32972 KB Output is correct
53 Correct 20 ms 32212 KB Output is correct
54 Correct 15 ms 31444 KB Output is correct
55 Correct 15 ms 31396 KB Output is correct
56 Correct 21 ms 39124 KB Output is correct
57 Correct 16 ms 36692 KB Output is correct
58 Correct 21 ms 31620 KB Output is correct
59 Correct 21 ms 31700 KB Output is correct
60 Correct 22 ms 31740 KB Output is correct
61 Correct 20 ms 31720 KB Output is correct
62 Correct 35 ms 32632 KB Output is correct
63 Correct 65 ms 33608 KB Output is correct
64 Correct 66 ms 33580 KB Output is correct
65 Correct 92 ms 35092 KB Output is correct
66 Correct 257 ms 35076 KB Output is correct
67 Correct 123 ms 35140 KB Output is correct