diff options
Diffstat (limited to '')
| -rw-r--r-- | ee1301/wk3/hw3_directory/strap012_HW3A.cpp | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/ee1301/wk3/hw3_directory/strap012_HW3A.cpp b/ee1301/wk3/hw3_directory/strap012_HW3A.cpp index 9aacf63..f83132d 100644 --- a/ee1301/wk3/hw3_directory/strap012_HW3A.cpp +++ b/ee1301/wk3/hw3_directory/strap012_HW3A.cpp @@ -24,6 +24,7 @@ using namespace std; int spin_the_wheel(int d, int w) { int spinOG=0, spinNew=0, win=0; spinOG = ( (rand() % d) + 1); //Original spin is always the same + w-=1; for (int i=0; i<w; i++) { spinNew = ( (rand() % d) + 1); if (spinOG==spinNew) { @@ -39,19 +40,18 @@ int spin_the_wheel(int d, int w) { int main () { srand(88888888); //Seeds the RNG of the program to a constant of eight 8s - int w, d, m, winTest; + int w, d, winCount, winTest; for (w=3; w<=6; w++) { - m=0; + winCount=0; for (d=9; d<=27; d++) { - m=0; + winCount=0; for (long n=1000000; n>0; n--) { int winTest = spin_the_wheel(d, w); - m+=winTest; + winCount+=winTest; } - double win=m; cout << "w=" << w << ", d=" << d - << ": Simulated probability = m/n = " << (win / 100000.0) * 100.0 << "%. " //Note that 100,000!=1,000,000 - << "Theoretical probability = " << (d / (pow(d, w))) * 100 << "%." << endl; //This is because otherwise the percentage was off by a factor of 10 + << ": Simulated probability = m/n = " << (winCount / 1000000.0) * 100.0 << "%. " + << "Theoretical probability = " << (d / (pow(d, w))) * 100 << "%." << endl; d+=2; } } |