Code issue with Esp-32

[techsavvy356]

C:\Users\haput-sa\Downloads\TWANG-master\TWANG4809\TWANG4809.ino:70:36: error: 'someLong' was not declared in this scope
int result = max(static_cast(someLong), someInt);
^~~~~~~~
C:\Users\haput-sa\Downloads\TWANG-master\TWANG4809\TWANG4809.ino:70:47: error: 'someInt' was not declared in this scope
int result = max(static_cast(someLong), someInt);
^~~~~~~
C:\Users\haput-sa\Downloads\TWANG-master\TWANG4809\TWANG4809.ino:70:14: error: 'max' was not declared in this scope
int result = max(static_cast(someLong), someInt);
^~~
C:\Users\haput-sa\Downloads\TWANG-master\TWANG4809\TWANG4809.ino:70:14: note: suggested alternative: 'ax'
int result = max(static_cast(someLong), someInt);
^~~
ax
C:\Users\haput-sa\Downloads\TWANG-master\TWANG4809\TWANG4809.ino:74:5: error: redefinition of 'int result'
int result = max(someLong, someInt);
^~~~~~
C:\Users\haput-sa\Downloads\TWANG-master\TWANG4809\TWANG4809.ino:70:5: note: 'int result' previously defined here
int result = max(static_cast(someLong), someInt);
^~~~~~
C:\Users\haput-sa\Downloads\TWANG-master\TWANG4809\TWANG4809.ino:74:14: error: 'max' was not declared in this scope
int result = max(someLong, someInt);
^~~
C:\Users\haput-sa\Downloads\TWANG-master\TWANG4809\TWANG4809.ino:74:14: note: suggested alternative: 'ax'
int result = max(someLong, someInt);
^~~
ax
C:\Users\haput-sa\Downloads\TWANG-master\TWANG4809\TWANG4809.ino: In function 'void loop()':
C:\Users\haput-sa\Downloads\TWANG-master\TWANG4809\TWANG4809.ino:213:25: error: 'max' was not declared in this scope
int n = max(map(((mm-stageStartTime)), 0, 500, NUM_LEDS, 0), 0);
^~~
C:\Users\haput-sa\Downloads\TWANG-master\TWANG4809\TWANG4809.ino:213:25: note: suggested alternative: 'ax'
int n = max(map(((mm-stageStartTime)), 0, 500, NUM_LEDS, 0), 0);
^~~
ax
C:\Users\haput-sa\Downloads\TWANG-master\TWANG4809\TWANG4809.ino:220:25: error: 'max' was not declared in this scope
int n = max(map(((mm-stageStartTime)), 500, 1000, NUM_LEDS, 0), 0);
^~~
C:\Users\haput-sa\Downloads\TWANG-master\TWANG4809\TWANG4809.ino:220:25: note: suggested alternative: 'ax'
int n = max(map(((mm-stageStartTime)), 500, 1000, NUM_LEDS, 0), 0);
^~~
ax
C:\Users\haput-sa\Downloads\TWANG-master\TWANG4809\TWANG4809.ino:235:26: error: 'max' was not declared in this scope
int n = max(static_cast(map((mm - stageStartTime), 0, 500, NUM_LEDS, 0)), 0);
^~~
C:\Users\haput-sa\Downloads\TWANG-master\TWANG4809\TWANG4809.ino:235:26: note: suggested alternative: 'ax'
int n = max(static_cast(map((mm - stageStartTime), 0, 500, NUM_LEDS, 0)), 0);
^~~
ax
C:\Users\haput-sa\Downloads\TWANG-master\TWANG4809\TWANG4809.ino:246:26: error: 'max' was not declared in this scope
int n = max(static_cast(map((mm - stageStartTime), 0, 500, NUM_LEDS, 0)), 0);
^~~
C:\Users\haput-sa\Downloads\TWANG-master\TWANG4809\TWANG4809.ino:246:26: note: suggested alternative: 'ax'
int n = max(static_cast(map((mm - stageStartTime), 0, 500, NUM_LEDS, 0)), 0);
^~~
ax

exit status 1

Compilation error: 'someLong' was not declared in this scope