oj.uz

답안 #705334

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
705334 2023-03-04T03:39:06 Z ToroTN Jakarta Skyscrapers (APIO15_skyscraper) C++14
0 / 100
 2 ms 2416 KB 
#include<bits/stdc++.h>
using namespace std;
#define X first
#define Y second
#define pb push_back
int n,m,x,y,st,ed,cnt,go,cost,u,d[30005];
set<int> s[30005];
vector<pair<int,int> > v[30005];
priority_queue<pair<int,int> > pq;
int main()
{
    scanf("%d%d",&n,&m);
    for(int i=1;i<=m;i++)
    {
        scanf("%d%d",&x,&y);
        if(i==1)st=x;
        if(i==2)ed=x;
        s[x].insert(y);
    }
    for(int i=0;i<n;i++)
    {
        for(auto it=s[i].begin();it!=s[i].end();it++)
        {
            cnt=0;
            for(int j=i-(*it);j>=0;j-=(*it))
            {
                ++cnt;
                v[i].pb({j,cnt});
                if(s[j].find(*it)!=s[j].end())break;
            }
            cnt=0;
            for(int j=i+(*it);j<n;j+=(*it))
            {
                ++cnt;
                v[i].pb({j,cnt});
                if(s[j].find(*it)!=s[j].end())break;
            }
        }
    }
    for(int i=0;i<n;i++)d[i]=1e9;
    d[st]=0;
    pq.push({0,st});
    while(!pq.empty())
    {
        u=pq.top().Y;
        pq.pop();
        for(int i=0;i<v[u].size();i++)
        {
            y=v[u][i].X,cost=v[u][i].Y;
            if(d[u]+cost<d[y])
            {
                d[y]=d[u]+cost;
                pq.push({-d[y],y});
            }
        }
    }
    printf("%d\n",d[ed]);
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:47:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |         for(int i=0;i<v[u].size();i++)
      |                     ~^~~~~~~~~~~~
skyscraper.cpp:12:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |     scanf("%d%d",&n,&m);
      |     ~~~~~^~~~~~~~~~~~~~
skyscraper.cpp:15:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |         scanf("%d%d",&x,&y);
      |         ~~~~~^~~~~~~~~~~~~~

Subtask #1
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2388 KB Output is correct
2 Correct 2 ms 2388 KB Output is correct
3 Correct 1 ms 2388 KB Output is correct
4 Incorrect 2 ms 2388 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2388 KB Output is correct
2 Correct 1 ms 2380 KB Output is correct
3 Correct 1 ms 2416 KB Output is correct
4 Incorrect 1 ms 2388 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2388 KB Output is correct
2 Correct 2 ms 2388 KB Output is correct
3 Correct 2 ms 2388 KB Output is correct
4 Incorrect 2 ms 2388 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2388 KB Output is correct
2 Correct 1 ms 2412 KB Output is correct
3 Correct 2 ms 2416 KB Output is correct
4 Incorrect 2 ms 2388 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2388 KB Output is correct
2 Correct 2 ms 2388 KB Output is correct
3 Correct 1 ms 2388 KB Output is correct
4 Incorrect 1 ms 2416 KB Output isn't correct
5 Halted 0 ms 0 KB -