Submission #677860

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
677860	2023-01-04 12:56:50	Joshc	Scissors and Tape (CEOI19_scissors)	C++11	100 / 100	5 ms	468 KiB

scissors

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define mp make_pair
#define pii pair<int, int>
#define f first
#define s second
typedef long double T;
typedef complex<T> pt;
#define x real()
#define y imag()
 
T dot(pt v, pt w) {return (conj(v)*w).x;}
T cross(pt v, pt w) {return (conj(v)*w).y;}
T orient(pt a, pt b, pt c) {return cross(b-a,c-a);} // positive for left, negative for right, 0 for straight
 
bool inDisk(pt a, pt b, pt p) {return dot(a-p, b-p) <= 0;}
bool onSegment(pt a, pt b, pt p) {return orient(a,b,p) == 0 && inDisk(a,b,p);}
T area(vector<pt> polygon) {
    int n = polygon.size();
    T res = 0;
    for (int i=0; i<n; i++) res += polygon[i].x * polygon[(i+1)%n].y - polygon[i].y * polygon[(i+1)%n].x;
    return abs(res) / 2;
}
int contains(vector<pt> polygon, pt p) {
    // Return 0 if outside, 1 if inside, 2 if on boundary
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

scissors.cpp: In function 'void output(std::vector<std::complex<long double> >)':
scissors.cpp:42:14: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::vector<std::complex<long double> >::size_type' {aka 'long unsigned int'} [-Wformat=]
   42 |     printf("%d", polygon.size());
      |             ~^   ~~~~~~~~~~~~~~
      |              |               |
      |              int             std::vector<std::complex<long double> >::size_type {aka long unsigned int}
      |             %ld
scissors.cpp: In function 'std::vector<int> scissors(int, std::vector<std::vector<std::complex<long double> > >)':
scissors.cpp:48:27: warning: format '%d' expects argument of type 'int', but argument 3 has type 'std::vector<std::vector<std::complex<long double> > >::size_type' {aka 'long unsigned int'} [-Wformat=]
   48 |     printf("scissors\n%d %d\n", original, pieces.size());
      |                          ~^               ~~~~~~~~~~~~~
      |                           |                          |
      |                           int                        std::vector<std::vector<std::complex<long double> > >::size_type {aka long unsigned int}
      |                          %ld
scissors.cpp: In function 'int tape(std::vector<int>, std::vector<std::complex<long double> >)':
scissors.cpp:59:20: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wformat=]
   59 |     printf("tape\n%d", pieces.size());
      |                   ~^   ~~~~~~~~~~~~~
      |                    |              |
      |                    int            std::vector<int>::size_type {aka long unsigned int}
      |                   %ld
scissors.cpp: In function 'int move(int, std::vector<std::complex<long double> >, int)':
scissors.cpp:71:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::complex<long double> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   71 |     for (int i=rotatenum; i<loc.size(); i++) pts.push_back(loc[i]);
      |                           ~^~~~~~~~~~~
scissors.cpp: In function 'int main()':
scissors.cpp:222:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  222 |     for (int i=0; i<rects.size(); i++) {
      |                   ~^~~~~~~~~~~~~
scissors.cpp: In function 'std::vector<std::complex<long double> > read()':
scissors.cpp:81:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   81 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
scissors.cpp:84:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   84 |         scanf("%d%d", &a, &b);
      |         ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 13 / 13
• Subtask 3: 12 / 12
• Subtask 4: 14 / 14
• Subtask 5: 10 / 10
• Subtask 6: 16 / 16
• Subtask 7: 11 / 11
• Subtask 8: 19 / 19