Submission #463520

#	Time	Username	Problem	Language	Result	Execution time	Memory
463520		fuad27	Triangles (CEOI18_tri)	C++14	Compilation error	0 ms	0 KiB

tri

#include<bits/stdc++.h>
#include"trilib.c"
typedef long long ll;
typedef long double ld;
#define vii vector<pair<int, int>>
#define vi vector<int>
#define vl vector<long long>
#define vll vector<pair<long long, long long>>
#define mp make_pair
#define pb push_back
#define rep(i, a, b) for(int i = a;i<=b;i++)
#define f first
#define s second
#define FIO ios_base::sync_with_stdio(0);cin.tie(0);
#define start int tt;cin>>tt;rep(testcase, 1, tt)
#define print(k) cout<<"Case #"<<testcase<<": "<<k<<"\n";
#define endl "\n"
#define DEBUG(k) cerr<<k<<"\n";

int main () {
	freopen("stdin", "r", stdin);
	freopen("stdout", "w", stdout);
	int n = get_n(), ans = 0;
	rep(i, 1, n) {
		rep(j, i+1, n) {
			bool check = true;
			rep(k, 1, n) {
				if(k == i or k == j)continue;
				check &= is_clockwise(i, j, k);
			}
			ans+=check;
		}
	}
	give_answer(ans*2);
}

Compilation message (stderr)

tri.cpp: In function 'int main()':
tri.cpp:21:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   21 |  freopen("stdin", "r", stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~
tri.cpp:22:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |  freopen("stdout", "w", stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
/usr/bin/ld: /tmp/ccqBlKt2.o: in function `get_n':
tri.cpp:(.text+0x120): multiple definition of `get_n'; /tmp/cc0TBLFY.o:trilib.c:(.text+0x120): first defined here
/usr/bin/ld: /tmp/ccqBlKt2.o: in function `is_clockwise':
tri.cpp:(.text+0x190): multiple definition of `is_clockwise'; /tmp/cc0TBLFY.o:trilib.c:(.text+0x190): first defined here
/usr/bin/ld: /tmp/ccqBlKt2.o: in function `give_answer':
tri.cpp:(.text+0x2f0): multiple definition of `give_answer'; /tmp/cc0TBLFY.o:trilib.c:(.text+0x2f0): first defined here
collect2: error: ld returned 1 exit status