제출 #487107

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
487107	2021-11-14 10:26:17	Cross_Ratio	Printed Circuit Board (CEOI12_circuit)	C++14	100 / 100	54 ms	8260 KiB

circuit

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#include <bits/stdc++.h>
#define int long long
using namespace std;
int X[200005];
int Y[200005];
int cmp(int x, int y) { // x < y : True
    int k = Y[y]*X[x]-Y[x]*X[y];
    if(k > 0) return 1;
    else if(k == 0) return 0;
    return -1;
}
int ccw(int x, int y, int m) {
    int x1 = X[x]-X[y];
    int y1 = Y[x]-Y[y];
    int x2 = X[m]-X[x];
    int y2 = Y[m]-Y[x];
    return x1*y2-x2*y1;
}
int ccw2(pair<int, int> a, pair<int, int> b, pair<int, int> c) {
    int op = a.first*b.second + b.first*c.second + c.first*a.second;
    op -= (a.second*b.first + b.second*c.first + c.second*a.first);
    if (op > 0)return 1;
    else if (op == 0)return 0;
    else return -1;
}
int isIntersect(pair<pair<int, int>, pair<int, int>> x, pair<pair<int, int>, pair<int, int>> y) {
    pair<int, int> a = x.first;
    pair<int, int> b = x.second;
    pair<int, int> c = y.first;
    pair<int, int> d = y.second;
 
 
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컴파일 시 표준 에러 (stderr) 메시지

circuit.cpp: In function 'int main()':
circuit.cpp:64:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   64 |         for(i=0;i<ans.size();i++) cout << ans[i] << ' ';
      |                 ~^~~~~~~~~~~
circuit.cpp:103:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  103 |     for(i=0;i<A.size();i++) {
      |             ~^~~~~~~~~
circuit.cpp:116:25: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  116 |                 while(i < A.size() &&(cmp(A[i],A[n1])==1
      |                       ~~^~~~~~~~~~
circuit.cpp:120:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  120 |                 if(i < A.size()) S.push(i);
      |                    ~~^~~~~~~~~~
circuit.cpp:142:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  142 |                     if(i == A.size()) break;
      |                        ~~^~~~~~~~~~~
circuit.cpp:164:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  164 |     for(i=0;i<ans.size();i++) cout << ans[i]+1 <<' ';
      |             ~^~~~~~~~~~~

• Subtask 1: 100 / 100