how To change this C++ code to matlab code ?

4 次查看(过去 30 天)
#include math.h
double AttackerSuccessProbability(double q, int z)
{
double p = 1.0 - q;
double lambda = z * (q / p);
double sum = 1.0;
int i, k;
for (k = 0; k <= z; k++)
{
double poisson = exp(-lambda);
for (i = 1; i <= k; i++)
poisson *= lambda / i;
sum -= poisson * (1 - pow(q / p, z - k));
}
return sum;
}

采纳的回答

Birdman
Birdman 2017-12-25
function y=AttackerSuccessProbability(q,z)
p=1-q;
lambda=z*q/p;
sum=1;
for k=0:z
poisson=exp(-lambda);
for i=1:k
poisson=poisson*lambda/i;
end
sum=sum-poisson*(1-((q/p).^(z-k)));
end
y=sum;
end
This one works.

更多回答(1 个)

alireza fadavi
alireza fadavi 2020-6-21
#include <stdio.h>
int field[100][100]; //mine squares will be denoted by -1
//current bounds:
int nLines = 100;
int nColumns = 100;
void clearField() {
int i;
for (i = 0; i < nLines; i++) {
int j;
for (j = 0; j < nColumns; j++) {
field[i][j] = 0;
}
}
}
void setBounds(int l, int c) {
nLines = l;
nColumns = c;
}
int isInsideBounds(int i, int j) {
return i >= 0 && i < nLines && j >=0 && j < nColumns;
}
void increment(int i, int j) {
if (isInsideBounds(i, j) && field[i][j] != -1) {
++field[i][j];
}
}
void setMine(int i, int j) {
field[i][j] = -1;
//increment neighbours
int m;
for (m = -1; m <= 1; m++) {
int n;
for (n = -1; n <= 1; n++) {
increment(i + m, j + n);
}
}
}
void printField(nField) {
printf("Field #%d:\n", nField);
int i;
for (i = 0; i < nLines; i++) {
int j;
for (j = 0; j < nColumns; j++) {
int x = field[i][j];
if (x == -1) { //if is mine, print *
printf("*");
} else {
printf("%d", x);
}
}
printf("\n");
}
}
int main() {
int l, c; //input vars (field lines and columns)
int nField = 1;
for (;;) {
scanf("%d %d", &l, &c);
if (l == 0 && c == 0) { //if end of input, break
break;
}
setBounds(l, c);
clearField();
int i;
for (i = 0; i < l; i++) {
char line[c + 1]; //remeber \0
scanf("%s", line);
int j;
for (j = 0; j < c; j++) {
char currentChar = line[j];
if (currentChar == '*') {
setMine(i, j);
}
}
}
if (nField > 1) {
printf("\n");
}
printField(nField);
++nField;
}
return 0;
}

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