Submission #100175

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
100175	2019-03-09 18:24:56	TadijaSebez	Palembang Bridges (APIO15_bridge)	C++11	100 / 100	475 ms	14960 KiB

bridge

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#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define mp make_pair
#define ll long long
const int N=100050;
const ll inf=9e18;
int l[N],r[N];
ll dp[N][2];
int main()
{
  int k,n;
  scanf("%i %i",&k,&n);
  char a,b;
  ll all=0;
  vector<int> work;
  for(int i=1;i<=n;i++)
  {
    scanf("\n%c %i %c %i",&a,&l[i],&b,&r[i]);
    if(a!=b)
    {
      if(l[i]>r[i]) swap(l[i],r[i]);
      work.pb(i);
    }
    else all+=abs(l[i]-r[i]);
  }
  if(work.empty()) return 0*printf("%lld\n",all);
  sort(work.begin(),work.end(),[&](int x, int y){ return l[x]+r[x]<l[y]+r[y];});
  for(int k=0;k<=1;k++)
  {
 
 
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Compilation message (stderr)

bridge.cpp: In function 'int main()':
bridge.cpp:36:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=1;j<work.size();j++)
               ~^~~~~~~~~~~~
bridge.cpp:54:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0;i<work.size();i++)
               ~^~~~~~~~~~~~
bridge.cpp:13:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%i %i",&k,&n);
  ~~~~~^~~~~~~~~~~~~~~
bridge.cpp:19:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("\n%c %i %c %i",&a,&l[i],&b,&r[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 14 / 14
• Subtask 3: 9 / 9
• Subtask 4: 32 / 32
• Subtask 5: 37 / 37