Created
April 15, 2018 13:35
-
-
Save Salomon-MH/55a6648ab52955e64188bf4061ca5393 to your computer and use it in GitHub Desktop.
Klausur 15 Task 7
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
// S -> b {T.A = S.A -1} T {U.A = T.B} U {S.B = U.B} | |
// T -> {S.A = T.A } S {U.A = S.B} U {T.B = U.B} | |
// T -> e {T.B = T.A} | |
// U -> a {S.A = U.A +2} S {U.A = S.B} U {U.B = U.B} | |
int X; | |
main() { | |
SCANNER(X); | |
S(S_A); | |
} | |
// S -> b {T.A = S.A -1} T {U.A = T.B} U {S.B = U.B} | |
int S (int S_A) { | |
if (X != "b") return; | |
SCANNER(X); | |
T_B = T(S_A - 1); | |
SCANNER(X); | |
U_B = U(T_B); | |
S_B = U_B; | |
return S_B; | |
} | |
// T -> {S.A = T.A } S {U.A = S.B} U {T.B = U.B} | |
// T -> e {T.B = T.A} | |
int T (int T_A) { | |
if ( X == "e" ) { | |
T_B = T_A; | |
return T_B; | |
} else { | |
S_A = T_A; | |
S_B = S(S_A); | |
U_A = S_B; | |
SCANNER(X); | |
U_B = U(U_A); | |
T_B = U_B; | |
return T_B; | |
} | |
} | |
// U -> a {S.A = U.A +2} S {U.A = S.B} U {U.B = U.B} | |
// U -> e {U.B = U.A} | |
int U (int U_A) { | |
if (X == "a") { | |
S_A = U_A + 2; | |
SCANNER(X); | |
S_B = S ( S_A ); | |
U_A = S_B; | |
SCANNER(X); | |
U_B = U(U_A); | |
U_B = U_B; | |
return U_B; | |
} else if (X == "e") { | |
U_B = U_A; | |
return U_B; | |
} else return; | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment