이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#define DEBUG 0
#include <bits/stdc++.h>
using namespace std;
#if DEBUG
// basic debugging macros
int __i__,__j__;
#define printLine(l) for(__i__=0;__i__<l;__i__++){cout<<"-";}cout<<endl
#define printLine2(l,c) for(__i__=0;__i__<l;__i__++){cout<<c;}cout<<endl
#define printVar(n) cout<<#n<<": "<<n<<endl
#define printArr(a,l) cout<<#a<<": ";for(__i__=0;__i__<l;__i__++){cout<<a[__i__]<<" ";}cout<<endl
#define print2dArr(a,r,c) cout<<#a<<":\n";for(__i__=0;__i__<r;__i__++){for(__j__=0;__j__<c;__j__++){cout<<a[__i__][__j__]<<" ";}cout<<endl;}
#define print2dArr2(a,r,c,l) cout<<#a<<":\n";for(__i__=0;__i__<r;__i__++){for(__j__=0;__j__<c;__j__++){cout<<setw(l)<<setfill(' ')<<a[__i__][__j__]<<" ";}cout<<endl;}
// advanced debugging class
// debug 1,2,'A',"test";
class _Debug {
public:
template<typename T>
_Debug& operator,(T val) {
cout << val << endl;
return *this;
}
};
#define debug _Debug(),
#else
#define printLine(l)
#define printLine2(l,c)
#define printVar(n)
#define printArr(a,l)
#define print2dArr(a,r,c)
#define print2dArr2(a,r,c,l)
#define debug
#endif
// define
#define MAX_VAL 999999999
#define MAX_VAL_2 999999999999999999LL
#define EPS 1e-6
#define mp make_pair
#define pb push_back
// typedef
typedef unsigned int UI;
typedef long long int LLI;
typedef unsigned long long int ULLI;
typedef unsigned short int US;
typedef pair<int,int> pii;
typedef pair<LLI,LLI> plli;
typedef vector<int> vi;
typedef vector<LLI> vlli;
typedef vector<pii> vpii;
typedef vector<plli> vplli;
// ---------- END OF TEMPLATE ----------
int Sf,Pf,Gf;
int S[100000],P[100000],G[100000];
struct point { LLI x,y; };
class comp {
public:
bool operator()(point a,point b) const {
return (long double) a.x*b.y > (long double) a.y*b.x;
}
};
point angle(int S,int P,int G) {
return (point){(LLI) S*(Sf+Pf+Gf)-(LLI) Sf*(S+P+G),(LLI) P*(Sf+Pf+Gf)-(LLI) Pf*(S+P+G)};
}
int quad(point p) {
if ((p.x == 0) && (p.y == 0)) return -1;
else if ((p.x > 0) && (p.y >= 0)) return 0;
else if ((p.x <= 0) && (p.y > 0)) return 1;
else if ((p.x < 0) && (p.y <= 0)) return 2;
else return 3;
}
multiset<point,comp> SS[4];
int main() {
int i;
int N;
int b = 0,r;
char c;
int o = 0,oo = 0;
scanf("%d %d %d %d",&Sf,&Pf,&Gf,&N);
for (i = 0; i < N; i++) {
scanf(" %c",&c);
if (c == 'A') {
scanf("%d %d %d",&S[b],&P[b],&G[b]);
point d = angle(S[b],P[b],G[b]);
b++;
int q = quad(d);
if (q == -1) oo++;
else {
if (SS[q].find(d) == SS[q].end()) {
d.x *= -1,d.y *= -1;
if (SS[q^2].find(d) != SS[q^2].end()) o++;
d.x *= -1,d.y *= -1;
}
SS[q].insert(d);
}
}
else {
scanf("%d",&r),r--;
point d = angle(S[r],P[r],G[r]);
int q = quad(d);
if (q == -1) oo--;
else {
SS[q].erase(SS[q].find(d));
if (SS[q].find(d) == SS[q].end()) {
d.x *= -1,d.y *= -1;
if (SS[q^2].find(d) != SS[q^2].end()) o--;
}
}
}
if (oo > 0) printf("1\n");
else if (o > 0) printf("2\n");
else {
int q;
for (q = 0; q < 4; q++) {
if (SS[q].empty()) {
if (SS[(q+1) & 3].empty() || SS[(q+3) & 3].empty()) break;
else if (comp()(*SS[(q+1) & 3].begin(),*SS[(q+3) & 3].rbegin())) break;
}
}
printf((q < 4) ? "0\n":"3\n");
}
}
return 0;
}
컴파일 시 표준 에러 (stderr) 메시지
Mixture.cpp: In function 'int main()':
Mixture.cpp:84:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
84 | scanf("%d %d %d %d",&Sf,&Pf,&Gf,&N);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Mixture.cpp:86:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
86 | scanf(" %c",&c);
| ~~~~~^~~~~~~~~~
Mixture.cpp:88:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
88 | scanf("%d %d %d",&S[b],&P[b],&G[b]);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Mixture.cpp:103:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
103 | scanf("%d",&r),r--;
| ~~~~~^~~~~~~~~
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