제출 #786123

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
786123		christinelynn	Jakarta Skyscrapers (APIO15_skyscraper)	C++17	10 / 100	1 ms	276 KiB

skyscraper

#include<bits/stdc++.h>
#define ll long long
#define fi first
#define sec second
#define pb push_back
#define pqueue priority_queue
#define int long long
#define pii pair<int,int>
#define supercepat ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(0);
using namespace std;
int tc,ans=0,n,m;
int b[30005],p[30005];
main(){
  supercepat;
  cin>>n>>m;
  for(int i=0;i<m;i++){
    cin>>b[i]>>p[i];
  }
  if(m==2){
    if(abs(b[1]-b[0])%p[0]==0) cout<<abs(b[1]-b[0])/p[0];
    else cout<<-1<<endl;
  }
  else if(m==3){
    ans=LLONG_MAX;
    //langsung
    bool ok=0;
    if(abs(b[1]-b[0])%p[0]==0){
      ok=1;
      ans=min(ans,abs(b[1]-b[0])/p[0]);
    }
    //ke 2 dulu
    if(abs(b[2]-b[0])%p[0]==0&&abs(b[2]-b[1])%p[2]==0){
      ok=1;
      ans=min(ans,(abs(b[2]-b[0])/p[0])+(abs(b[2]-b[1])/p[2]));
    }
    if(ok) cout<<ans<<endl;
    else cout<<-1<<endl;
  }
}

컴파일 시 표준 에러 (stderr) 메시지

skyscraper.cpp:13:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   13 | main(){
      | ^~~~

• Subtask 1: 10 / 10
• Subtask 2: 0 / 12
• Subtask 3: 0 / 14
• Subtask 4: 0 / 21
• Subtask 5: 0 / 43