Submission #466666

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
466666	2021-08-20 03:41:56	cgiosy	Palembang Bridges (APIO15_bridge)	C++17	100 / 100	90 ms	3132 KiB

bridge

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#include <bits/stdc++.h>
using namespace std;
using ll=long long;
using PQ=priority_queue<int>;
struct pii {
  int l, r;
  bool operator<(pii b) const { return l+r<b.l+b.r; }
};
int main() {
  int K, N, M=0;
  scanf("%d%d", &K, &N);
  pii A[N];
  ll B[N], s=0, w=0;
  for(int i=0; i<N; i++) {
    char a, b;
    int l, r;
    scanf(" %c%d %c%d", &a, &l, &b, &r);
    if(l>r) swap(l, r);
    if(a!=b) A[M++]={l, r};
    else s+=r-l;
  }
  s+=N=M;
  sort(A, A+N);
  PQ L, R;
  auto add=[&](pii v) {
    L.push(v.l), R.push(-v.r);
    w+=v.r-v.l;
    if(L.top()>-R.top()) {
 
 
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Compilation message (stderr)

bridge.cpp: In function 'int main()':
bridge.cpp:12:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |  scanf("%d%d", &K, &N);
      |  ~~~~~^~~~~~~~~~~~~~~~
bridge.cpp:18:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |   scanf(" %c%d %c%d", &a, &l, &b, &r);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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