Submission #791965

#	Time	Username	Problem	Language	Result	Execution time	Memory
791965		ttamx	Triangles (CEOI18_tri)	C++14	Compilation error	0 ms	0 KiB

tri

#include"trilib.c"
#include<bits/stdc++.h>

using namespace std;

vector<int> lower,upper;
deque<int> hull;
set<int> ans;

bool cmp(int x,int y){
    return is_clockwise(1,x,y);
}

void upd(int x){
    while(hull.size()>1&&!is_clockwise(hull.end()[-2],hull.back(),x))hull.pop_back();
    hull.emplace_back(x);
}

int main(){
    cin.tie(nullptr)->sync_with_stdio(false);
    int n;
    n=get_n();
    for(int i=3;i<=n;i++){
        if(is_clockwise(1,2,i))upper.emplace_back(i);
        else lower.emplace_back(i);
    }
    sort(lower.begin(),lower.end(),cmp);
    sort(upper.begin(),upper.end(),cmp);
    for(int i=0;i<2;i++){
        upd(1);
        for(auto x:lower)upd(x);
        upd(2);
        for(auto x:upper)upd(x);
    }
    for(auto x:hull)ans.emplace(x);
    give_answer(ans.size());
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccpUMKaU.o: in function `get_n':
tri.cpp:(.text+0x120): multiple definition of `get_n'; /tmp/ccEayB6U.o:trilib.c:(.text+0x120): first defined here
/usr/bin/ld: /tmp/ccpUMKaU.o: in function `is_clockwise':
tri.cpp:(.text+0x190): multiple definition of `is_clockwise'; /tmp/ccEayB6U.o:trilib.c:(.text+0x190): first defined here
/usr/bin/ld: /tmp/ccpUMKaU.o: in function `give_answer':
tri.cpp:(.text+0x310): multiple definition of `give_answer'; /tmp/ccEayB6U.o:trilib.c:(.text+0x2f0): first defined here
collect2: error: ld returned 1 exit status