Submission #967909
Source Code Expand
#include <bits/stdc++.h>
using namespace std;
// Macro Tools /////////////////////////////////////////////////////////////////
#define GET_MACRO_09(A0, A1, A2, A3, A4, A5, A6, A7, A8, NAME, ...) NAME
#define EXPAND_01(MACRO, A0, ...) \
MACRO(A0, ##__VA_ARGS__)
#define EXPAND_02(MACRO, A0, A1, ...) \
MACRO(A0, ##__VA_ARGS__) MACRO(A1, ##__VA_ARGS__)
#define EXPAND_03(MACRO, A0, A1, A2, ...) \
MACRO(A0, ##__VA_ARGS__) MACRO(A1, ##__VA_ARGS__) MACRO(A2, ##__VA_ARGS__)
#define EXPAND_04(MACRO, A0, A1, A2, A3, ...) \
MACRO(A0, ##__VA_ARGS__) MACRO(A1, ##__VA_ARGS__) MACRO(A2, ##__VA_ARGS__) \
MACRO(A3, ##__VA_ARGS__)
#define EXPAND_05(MACRO, A0, A1, A2, A3, A4, ...) \
MACRO(A0, ##__VA_ARGS__) MACRO(A1, ##__VA_ARGS__) MACRO(A2, ##__VA_ARGS__) \
MACRO(A3, ##__VA_ARGS__) MACRO(A4, ##__VA_ARGS__)
#define EXPAND_06(MACRO, A0, A1, A2, A3, A4, A5, ...) \
MACRO(A0, ##__VA_ARGS__) MACRO(A1, ##__VA_ARGS__) MACRO(A2, ##__VA_ARGS__) \
MACRO(A3, ##__VA_ARGS__) MACRO(A4, ##__VA_ARGS__) MACRO(A5, ##__VA_ARGS__)
#define EXPAND_07(MACRO, A0, A1, A2, A3, A4, A5, A6, ...) \
MACRO(A0, ##__VA_ARGS__) MACRO(A1, ##__VA_ARGS__) MACRO(A2, ##__VA_ARGS__) \
MACRO(A3, ##__VA_ARGS__) MACRO(A4, ##__VA_ARGS__) MACRO(A5, ##__VA_ARGS__) \
MACRO(A6, ##__VA_ARGS__)
#define EXPAND_08(MACRO, A0, A1, A2, A3, A4, A5, A6, A7, ...) \
MACRO(A0, ##__VA_ARGS__) MACRO(A1, ##__VA_ARGS__) MACRO(A2, ##__VA_ARGS__) \
MACRO(A3, ##__VA_ARGS__) MACRO(A4, ##__VA_ARGS__) MACRO(A5, ##__VA_ARGS__) \
MACRO(A6, ##__VA_ARGS__) MACRO(A7, ##__VA_ARGS__)
#define EXPAND_09(MACRO, A0, A1, A2, A3, A4, A5, A6, A7, A8, ...) \
MACRO(A0, ##__VA_ARGS__) MACRO(A1, ##__VA_ARGS__) MACRO(A2, ##__VA_ARGS__) \
MACRO(A3, ##__VA_ARGS__) MACRO(A4, ##__VA_ARGS__) MACRO(A5, ##__VA_ARGS__) \
MACRO(A6, ##__VA_ARGS__) MACRO(A7, ##__VA_ARGS__) MACRO(A8, ##__VA_ARGS__)
#define GET_EXPAND(...) GET_MACRO_09(__VA_ARGS__, EXPAND_09, EXPAND_08, \
EXPAND_07, EXPAND_06, EXPAND_05, EXPAND_04, EXPAND_03, EXPAND_02, EXPAND_01)
#define EXPAND_ARG_0(MACRO, ...) GET_EXPAND(__VA_ARGS__)(MACRO, __VA_ARGS__)
#define EXPAND_ARG_1(MACRO, A0, ...) GET_EXPAND(__VA_ARGS__)(MACRO, __VA_ARGS__, A0)
#define EXPAND(MACRO, ...) EXPAND_ARG_0(MACRO, __VA_ARGS__)
#define Q(x) #x
#define QUOTE(x) Q(x)
// Input ///////////////////////////////////////////////////////////////////////
#define SCANF_INT(a) scanf("%d", &(a));
#define ID(...) int __VA_ARGS__;
#define IR(...) {EXPAND(SCANF_INT, __VA_ARGS__)}
#define I(...) ID(__VA_ARGS__) IR(__VA_ARGS__)
// #define DEFINE_INT_ARRAY(a, n) int a[n];
// #define INT_ITH_ARRAY(a, i) a[i]
// #define IAD(N, ...) EXPAND_ARG_1(DEFINE_INT_ARRAY, N, __VA_ARGS__)
// #define IAR(N, ...) REP(array_reader_i, N){
#define SCANF_LL(a) scanf("%lld", &(a));
#define LD(...) ll __VA_ARGS__;
#define LR(...) {EXPAND(SCANF_LL, __VA_ARGS__)}
#define L(...) LD(__VA_ARGS__) LR(__VA_ARGS__)
#define DEFINE_STR(a, n) char a[n];
#define SCANF_STR(a) scanf("%s", a);
#define SD(N, ...) EXPAND_ARG_1(DEFINE_STR, N, __VA_ARGS__)
#define SR(...) EXPAND(SCANF_STR, __VA_ARGS__)
#define S(N, ...) SD(N, __VA_ARGS__) SR(__VA_ARGS__)
// Output //////////////////////////////////////////////////////////////////////
#define LN printf("\n");
#define IP(a, ...) printf("%d", a);
// Types ///////////////////////////////////////////////////////////////////////
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<int, ll> pil;
typedef pair<ll, int> pli;
typedef pair<ll, ll> pll;
typedef set<int> si;
typedef set<ll> sll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<pii> vpii;
typedef list<int> li;
typedef list<ll> lll;
typedef map<int, int> mii;
typedef map<int, ll> mil;
typedef map<ll, int> mli;
typedef map<ll, ll> mll;
// Loop & Iteration ////////////////////////////////////////////////////////////
#define FORT(t, i, a, b) \
for(t i = (a), loop_end_##i=(b); i < (loop_end_##i); i++)
#define FORL(i, a, b) FORT(ll, i, a, b)
#define FOR(i, a, b) FORT(int, i, a, b)
#define REPT(t, i, n) FORT(t, i, 0, n)
#define REPL(i, n) FORL(i, 0, n)
#define REP(i, n) FOR(i, 0, n)
#define EACH(i,c) for(auto i=(c).begin(); i!=(c).end(); ++i)
#define EXIST(s,e) ((s).find(e)!=(s).end())
#define ALL(a) (a).begin(), (a).end()
#define SORT(a) sort(ALL(a))
#define SORTA(a, n) sort(a, a+n)
#define PB push_back
#define MP make_pair
#define itr iterator
// Range ///////////////////////////////////////////////////////////////////////
#define IN(x, a, b) (a<=x && x<b)
#define INC(x, a, b) (a<=x && x<=b)
int dx[8] = { 1, 0, 0,-1, 1, 1,-1,-1};
int dy[8] = { 0,-1, 1, 0,-1, 1,-1, 1};
#define LAR(a, b) ((a)=max((a), (b)))
#define SML(a, b) ((a)=min((a), (b)))
// Debug ///////////////////////////////////////////////////////////////////////
#define println(...) {printf(__VA_ARGS__); printf("\n");}
#ifdef LOCAL
#define debug(...) printf(__VA_ARGS__)
#define debugln(...) println(__VA_ARGS__)
#else
#define debug(...) {}
#define debugln(...) {}
#endif
// Numbers /////////////////////////////////////////////////////////////////////
ll gcd(ll a, ll b){
if(b==0) return a;
else return gcd(b, a%b);
}
#define PRIME_MAX 1000000
bool isprime[PRIME_MAX+5];
void init_prime(){
fill(isprime, isprime+PRIME_MAX+5, true);
isprime[0]=isprime[1]=false;
REP(i, PRIME_MAX+5){
if(isprime[i]){
for(int j=i*2; j<PRIME_MAX; j+=i){
isprime[j]=false;
}
}
}
}
vll factors(ll n){
vll v;
REPL(i, PRIME_MAX){
if(!isprime[i]) continue;
while(n%i==0){
v.PB(i);
n/=i;
}
}
if(n>1){
v.PB(n);
}
return v;
}
// BIT /////////////////////////////////////////////////////////////////////////
template<
typename T = int
>
class bit{
public:
T *bit_arr;
int size;
bit(int n){
size = n;
bit_arr = new T[n];
fill(bit_arr, bit_arr+n, 0);
}
~bit(){
delete bit_arr;
}
T sum(int a){
T ret = 0;
while(a){
ret+=bit_arr[a];
a-=a&-a;
}
return ret;
}
T sum(int a, int b){
return sum(b)-sum(a);
}
T get(int a){
return sum(a, a+1);
}
void add(int a, T x){
a++;
while(a<size){
bit_arr[a]+=x;
a+=a&-a;
}
}
void set(int a, T x){
add(a, x-get(a));
}
};
typedef bit<ll> bll;
// RMQ /////////////////////////////////////////////////////////////////////////
template<
typename T = int,
class Compare=less<T>
>
class rmq{
public:
int size;
Compare comp;
T *dat;
T init;
rmq(int n, T init_=INT_MAX){
init=init_;
size = 1;
while(size<n) size*=2;
dat = new T[2*size-1];
fill(dat, dat+(2*size-1), init);
}
~rmq(){
delete dat;
}
void set(int k, T a){
k+=size-1;
dat[k]=a;
while(k>0){
k=(k-1)/2;
dat[k]=min(dat[k*2+1], dat[k*2+2], comp);
}
}
T get(int a, int b, int k, int l, int r){
if(r<=a || b<=l) return init;
if(a<=l && r<=b) return dat[k];
else{
T vl = get(a, b, k*2+1, l, (l+r)/2);
T vr = get(a, b, k*2+2, (l+r)/2, r);
return min(vl, vr, comp);
}
}
T get(int a, int b){
return get(a, b, 0, 0, size);
}
};
// Others //////////////////////////////////////////////////////////////////////
#define MOD 1000000007
#define YES() printf("YES\n")
#define NO() printf("NO\n")
////////////////////////////////////////////////////////////////////////////////
typedef long double ld;
int r, n, m;
ld gt(int i){
if(i<=0 || i>=n) return 0;
ld ii = i;
ld rr = r;
ld nn = n;
ld dd = abs(nn/2-ii);
ld yy = 2*rr*dd/nn;
// printf("%.3Lf ", dd);
return sqrt(rr*rr-yy*yy)*2;
}
int main(){
IR(r, n, m);
ld ans = 0;
REP(ii, n+m-1){
int i = ii+1;
// printf("%.3Lf %.3Lf\n", gt(i), gt(i-m));
// printf("%d\n", i);
ans+=max(gt(i), gt(i-m));
}
printf("%.30Lf\n", ans);
}
Submission Info
Submission Time |
|
Task |
B - ステップカット |
User |
pkMZ75105 |
Language |
C++14 (GCC 5.4.1) |
Score |
200 |
Code Size |
7892 Byte |
Status |
AC |
Exec Time |
6 ms |
Memory |
256 KB |
Compile Error
./Main.cpp: In function ‘int main()’:
./Main.cpp:46:39: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
#define SCANF_INT(a) scanf("%d", &(a));
^
./Main.cpp:12:2: note: in expansion of macro ‘SCANF_INT’
MACRO(A0, ##__VA_ARGS__) MACRO(A1, ##__VA_ARGS__) MACRO(A2, ##__VA_ARGS__)
^
./Main.cpp:5:69: note: in expansion of macro ‘EXPAND_03’
#define GET_MACRO_09(A0, A1, A2, A3, A4, A5, A6, A7, A8, NAME, ...) NAME
^
./Main.cpp:40:28: note: in expansion of macro ‘EXPAND_ARG_0’
#define EXPAND(MACRO, ...) EXPAND_ARG_0(MACRO, __VA_ARGS__)
^
./Main.cpp:48:18: note: in expansion of macro ‘EXPAND’
#define IR(...) {EXPAND(SCANF_INT, __VA_ARGS__)}
^
./Main.cpp:283:2: note: in expansion of macro ‘IR’
IR(r, n, m);
^
./Main.cpp:46:39: warning: ignoring return value of ‘int scanf(con...
Judge Result
Set Name |
Sample |
All |
Score / Max Score |
0 / 0 |
200 / 200 |
Status |
|
|
Set Name |
Test Cases |
Sample |
00_example_01.txt, 00_example_02.txt, 00_example_03.txt |
All |
00_example_01.txt, 00_example_02.txt, 00_example_03.txt, 10_rand_01.txt, 10_rand_02.txt, 10_rand_03.txt, 10_rand_04.txt, 10_rand_05.txt, 10_rand_06.txt, 10_rand_07.txt, 10_rand_08.txt, 20_hand_01.txt, 20_hand_02.txt, 20_hand_03.txt, 20_hand_04.txt, 20_hand_05.txt |
Case Name |
Status |
Exec Time |
Memory |
00_example_01.txt |
AC |
2 ms |
256 KB |
00_example_02.txt |
AC |
2 ms |
256 KB |
00_example_03.txt |
AC |
5 ms |
256 KB |
10_rand_01.txt |
AC |
2 ms |
256 KB |
10_rand_02.txt |
AC |
2 ms |
256 KB |
10_rand_03.txt |
AC |
4 ms |
256 KB |
10_rand_04.txt |
AC |
2 ms |
256 KB |
10_rand_05.txt |
AC |
3 ms |
256 KB |
10_rand_06.txt |
AC |
3 ms |
256 KB |
10_rand_07.txt |
AC |
3 ms |
256 KB |
10_rand_08.txt |
AC |
3 ms |
256 KB |
20_hand_01.txt |
AC |
5 ms |
256 KB |
20_hand_02.txt |
AC |
6 ms |
256 KB |
20_hand_03.txt |
AC |
5 ms |
256 KB |
20_hand_04.txt |
AC |
2 ms |
256 KB |
20_hand_05.txt |
AC |
3 ms |
256 KB |