Submission #3238492
Source Code Expand
#include <iostream> #include <cstdio> #include <cstdlib> #include <algorithm> #include <cstring> #include <cctype> #include <cmath> #define ri register int using namespace std; template <class T>void read(T &x){ x=0;int ne=0;char c; while(!isdigit(c=getchar()))ne=c=='-'; x=c-48; while(isdigit(c=getchar()))x=(x<<3)+(x<<1)+c-48; x=ne?-x:x; return ; } int n,m,d; int main(){ read(n),read(m),read(d); if(d==0)printf("%.10Lf\n",(long double)(m-1)/n); else if(n<=d)printf("0.0000000\n"); else printf("%.10Lf\n",(long double)(1.00*2*(n-d)*(m-1))/n/n); return 0; }
Submission Info
Submission Time | |
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Task | C - Ordinary Beauty |
User | vjudge4 |
Language | C++14 (GCC 5.4.1) |
Score | 300 |
Code Size | 571 Byte |
Status | AC |
Exec Time | 1 ms |
Memory | 256 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 300 / 300 | ||||
Status |
|
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Set Name | Test Cases |
---|---|
Sample | sample_1000000000_180707_0.txt, sample_2_3_1.txt |
All | sample_1000000000_180707_0.txt, sample_2_3_1.txt, test_11936238_9_153932.txt, test_138666_2854897_1404.txt, test_1_2_0.txt, test_234679769_107_69508.txt, test_25213539_11160_27040.txt, test_28367_3200917_12993.txt, test_46387542_48_441879.txt, test_50484_560629_534.txt, test_569_56_8.txt, test_77_143_1.txt, test_8180059_850_58.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
sample_1000000000_180707_0.txt | AC | 1 ms | 256 KB |
sample_2_3_1.txt | AC | 1 ms | 256 KB |
test_11936238_9_153932.txt | AC | 1 ms | 256 KB |
test_138666_2854897_1404.txt | AC | 1 ms | 256 KB |
test_1_2_0.txt | AC | 1 ms | 256 KB |
test_234679769_107_69508.txt | AC | 1 ms | 256 KB |
test_25213539_11160_27040.txt | AC | 1 ms | 256 KB |
test_28367_3200917_12993.txt | AC | 1 ms | 256 KB |
test_46387542_48_441879.txt | AC | 1 ms | 256 KB |
test_50484_560629_534.txt | AC | 1 ms | 256 KB |
test_569_56_8.txt | AC | 1 ms | 256 KB |
test_77_143_1.txt | AC | 1 ms | 256 KB |
test_8180059_850_58.txt | AC | 1 ms | 256 KB |