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Julien David
SDA
Commits
f134278e
Commit
f134278e
authored
5 years ago
by
david
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long double in CPP
parent
d24f9e12
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2 changed files
CPP/analyzer.cpp
+3
-3
3 additions, 3 deletions
CPP/analyzer.cpp
CPP/analyzer.hpp
+5
-5
5 additions, 5 deletions
CPP/analyzer.hpp
with
8 additions
and
8 deletions
CPP/analyzer.cpp
+
3
−
3
View file @
f134278e
...
...
@@ -8,14 +8,14 @@ void Analyzer::append(const double & x){
cumulative_square
+=
x
*
x
;
}
double
Analyzer
::
get_average_cost
(){
long
double
Analyzer
::
get_average_cost
(){
if
(
cumulative_cost
.
empty
())
throw
std
::
runtime_error
(
"List is empty"
);
return
cumulative_cost
.
back
()
/
cumulative_cost
.
size
();
}
double
Analyzer
::
get_variance
(){
double
mean
,
mean_square
;
long
double
Analyzer
::
get_variance
(){
long
double
mean
,
mean_square
;
mean
=
get_average_cost
();
mean_square
=
mean
*
mean
;
return
cumulative_square
-
mean_square
;
...
...
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Click to expand it.
CPP/analyzer.hpp
+
5
−
5
View file @
f134278e
...
...
@@ -31,7 +31,7 @@ public:
Complexité en temps/espace, meilleur cas : O(1)
@returns la somme des coûts enregistrés dans cette analyse.
*/
double
get_total_cost
(){
long
double
get_total_cost
(){
return
cumulative_cost
.
back
();
}
...
...
@@ -41,7 +41,7 @@ public:
@param pos est l'indice de l'opération pour laquelle on veut connaître le coût amorti.
@returns le coût amorti d'une opération.
*/
double
get_amortized_cost
(
size_t
pos
){
long
double
get_amortized_cost
(
size_t
pos
){
return
(
pos
)
?
cumulative_cost
.
at
(
pos
)
/
pos
:
cumulative_cost
.
at
(
pos
);
}
...
...
@@ -50,21 +50,21 @@ public:
Complexité en temps/espace, meilleur cas : O(1)
@returns la moyenne des coûts de toutes les opérations enregistrées dans l'analyse.
*/
double
get_average_cost
();
long
double
get_average_cost
();
/**
Renvoie la variance des coûts de toutes les opérations enregistrées dans l'analyse.
Complexité en temps/espace, meilleur cas : O(1)
@returns la variance des coûts de toutes les opérations enregistrées dans l'analyse.
*/
double
get_variance
();
long
double
get_variance
();
/**
Renvoie l'écart-type des coûts de toutes les opérations enregistrées dans l'analyse.
Complexité en temps/espace, meilleur cas : O(1)
@returns l'écart-type des coûts de toutes les opérations enregistrées dans l'analyse.
*/
double
get_standard_deviation
(){
long
double
get_standard_deviation
(){
return
std
::
sqrt
(
get_variance
());
}
...
...
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