Cody

# Problem 1184. Hangman (strategy)

Solution 820298

Submitted on 4 Feb 2016
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### Test Suite

Test Status Code Input and Output
1   Pass
%% assignin('caller','score',300); a.words0={'BUZZ','COZY','DOZE','FUZZ','GAZE','HAZE','JAZZ','LAZY','SIZE','ZERO','ZONE'}; a.e=0; for n=randperm(numel(a.words0)) a.i=n; a.words=a.words0; a.n=n; for m=1:100, a.m=m; assignin('caller','a',a); letter=hangman(a.words); letter=char(letter(1)); a=evalin('caller','a'); m=a.m; fprintf('Target word %s; Step %d; Word list %s; Guess %c\n',a.words{a.i},a.m,sprintf('%s ',a.words{:}),letter); matchedletters=a.words{a.i}==letter; if ~any(matchedletters), a.e=a.e+1; end matchedwords=find(cellfun(@(x)isequal(matchedletters,x==letter),a.words)); a.i=find(matchedwords==a.i); a.words=regexprep(a.words(matchedwords),letter,''); nonemptywords=find(cellfun('length',a.words)>0); a.i=find(nonemptywords==a.i); if isempty(a.i), break; end end if ~isempty(a.i), error(sprintf('algorithm did not guess word after 100 steps. Last message: Target word %s; Step %d; Word list %s; Guessed letter %c\n',a.words{a.i},a.m,sprintf('%s ',a.words{:}),letter)); end n=a.n; end a.e=a.e/numel(a.words0); fprintf('Average number of errors per word %f\n',a.e); assert(a.e<5); assignin('caller','score',evalin('caller','score')-100+round(a.e/5*100));

Target word ZERO; Step 1; Word list BUZZ COZY DOZE FUZZ GAZE HAZE JAZZ LAZY SIZE ZERO ZONE ; Guess N Target word ZERO; Step 2; Word list BUZZ COZY DOZE FUZZ GAZE HAZE JAZZ LAZY SIZE ZERO ; Guess B Target word ZERO; Step 3; Word list COZY DOZE FUZZ GAZE HAZE JAZZ LAZY SIZE ZERO ; Guess E Target word ZRO; Step 4; Word list ZRO ; Guess O Target word ZR; Step 5; Word list ZR ; Guess Z Target word R; Step 6; Word list R ; Guess R Target word SIZE; Step 1; Word list BUZZ COZY DOZE FUZZ GAZE HAZE JAZZ LAZY SIZE ZERO ZONE ; Guess Y Target word SIZE; Step 2; Word list BUZZ DOZE FUZZ GAZE HAZE JAZZ SIZE ZERO ZONE ; Guess U Target word SIZE; Step 3; Word list DOZE GAZE HAZE JAZZ SIZE ZERO ZONE ; Guess E Target word SIZ; Step 4; Word list DOZ GAZ HAZ SIZ ZON ; Guess O Target word SIZ; Step 5; Word list GAZ HAZ SIZ ; Guess A Target word SIZ; Step 6; Word list SIZ ; Guess Z Target word SI; Step 7; Word list SI ; Guess S Target word I; Step 8; Word list I ; Guess I Target word HAZE; Step 1; Word list BUZZ COZY DOZE FUZZ GAZE HAZE JAZZ LAZY SIZE ZERO ZONE ; Guess J Target word HAZE; Step 2; Word list BUZZ COZY DOZE FUZZ GAZE HAZE LAZY SIZE ZERO ZONE ; Guess F Target word HAZE; Step 3; Word list BUZZ COZY DOZE GAZE HAZE LAZY SIZE ZERO ZONE ; Guess Z Target word HAE; Step 4; Word list COY DOE GAE HAE LAY SIE ; Guess H Target word AE; Step 5; Word list AE ; Guess E Target word A; Step 6; Word list A ; Guess A Target word FUZZ; Step 1; Word list BUZZ COZY DOZE FUZZ GAZE HAZE JAZZ LAZY SIZE ZERO ZONE ; Guess Z Target word FU; Step 2; Word list BU FU JA ; Guess J Target word FU; Step 3; Word list BU FU ; Guess U Target word F; Step 4; Word list B F ; Guess F Target word LAZY; Step 1; Word list BUZZ COZY DOZE FUZZ GAZE HAZE JAZZ LAZY SIZE ZERO ZONE ; Guess R Target word LAZY; Step 2; Word list BUZZ COZY DOZE FUZZ GAZE HAZE JAZZ LAZY SIZE ZONE ; Guess Y Target word LAZ; Step 3; Word list COZ LAZ ; Guess O Target word LAZ; Step 4; Word list LAZ ; Guess A Target word LZ; Step 5; Word list LZ ; Guess L Target word Z; Step 6; Word list Z ; Guess Z Target word JAZZ; Step 1; Word list BUZZ COZY DOZE FUZZ GAZE HAZE JAZZ LAZY SIZE ZERO ZONE ; Guess H Target word JAZZ; Step 2; Word list BUZZ COZY DOZE FUZZ GAZE JAZZ LAZY SIZE ZERO ZONE ; Guess L Target word JAZZ; Step 3; Word list BUZZ COZY DOZE FUZZ GAZE JAZZ SIZE ZERO ZONE ; Guess Y Target word JAZZ; Step 4; Word list BUZZ DOZE FUZZ GAZE JAZZ SIZE ZERO ZONE ; Guess Z Target word JA; Step 5; Word list BU FU JA ; Guess U Target word JA; Step 6; Word list JA ; Guess J Target word A; Step 7; Word list A ; Guess A Target word BUZZ; Step 1; Word list BUZZ COZY DOZE FUZZ GAZE HAZE JAZZ LAZY SIZE ZERO ZONE ; Guess Z Target word BU; Step 2; Word list BU FU JA ; Guess J Target word BU; Step 3; Word list BU FU ; Guess U Target word B; Step 4; Word list B F ; Guess F Target word B; Step 5; Word list B ; Guess B Target word ZONE; Step 1; Word list BUZZ COZY DOZE FUZZ GAZE HAZE JAZZ LAZY SIZE ZERO ZONE ; Guess Z Target word ONE; Step 2; Word list ERO ONE ; Guess O Target word NE; Step 3; Word list NE ; Guess E Target word N; Step 4; Word list N ; Guess N Target word GAZE; Step 1; Word list BUZZ COZY DOZE FUZZ GAZE HAZE JAZZ LAZY SIZE ZERO ZONE ; Guess B Target word GAZE; Step 2; Word list COZY DOZE FUZZ GAZE HAZE JAZZ LAZY SIZE ZERO ZONE ; Guess O Target word GAZE; Step 3; Word list FUZZ GAZE HAZE JAZZ LAZY SIZE ; Guess Z Target word GAE; Step 4; Word list GAE HAE LAY SIE ; Guess I Target word GAE; Step 5; Word list GAE HAE LAY ; Guess A Target word GE; Step 6; Word list GE HE LY ; Guess E Target word G; Step 7; Word list G H ; Guess G Target word COZY; Step 1; Word list BUZZ COZY DOZE FUZZ GAZE HAZE JAZZ LAZY SIZE ZERO ZONE ; Guess A Target word COZY; Step 2; Word list BUZZ COZY DOZE FUZZ SIZE ZERO ZONE ; Guess Z Target word COY; Step 3; Word list COY DOE SIE ; Guess C Target word OY; Step 4; Word list OY ; Guess O Target word Y; Step 5; Word list Y ; Guess Y Target word DOZE; Step 1; Word list BUZZ COZY DOZE FUZZ GAZE HAZE JAZZ LAZY SIZE ZERO ZONE ; Guess Z Target word DOE; Step 2; Word list COY DOE GAE HAE LAY SIE ; Guess S Target word DOE; Step 3; Word list COY DOE GAE HAE LAY ; Guess Y Target word DOE; Step 4; Word list DOE GAE HAE ; Guess A Target word DOE; Step 5; Word list DOE ; Guess D Target word OE; Step 6; Word list OE ; Guess E Target word O; Step 7; Word list O ; Guess O Average number of errors per word 2.181818

2   Fail
%% rng default; a.words0=cellstr(unique(char('A'+ceil(26*rand([200,3]).^2)-1),'rows'))'; a.e=0; for n=randperm(numel(a.words0)) a.i=n; a.words=a.words0; a.n=n; for m=1:100, a.m=m; assignin('caller','a',a); letter=hangman(a.words); letter=char(letter(1)); a=evalin('caller','a'); m=a.m; matchedletters=a.words{a.i}==letter; if ~any(matchedletters), a.e=a.e+1; end matchedwords=find(cellfun(@(x)isequal(matchedletters,x==letter),a.words)); a.i=find(matchedwords==a.i); a.words=regexprep(a.words(matchedwords),letter,''); nonemptywords=find(cellfun('length',a.words)>0); a.i=find(nonemptywords==a.i); if isempty(a.i), break; end end if ~isempty(a.i), error(sprintf('algorithm did not guess word after 100 steps. Last message: Target word %s; Step %d; Word list %s; Guessed letter %c\n',a.words{a.i},a.m,sprintf('%s ',a.words{:}),letter)); end n=a.n; end a.e=a.e/numel(a.words0); fprintf('Average number of errors per word %f\n',a.e); assert(a.e<5); assignin('caller','score',evalin('caller','score')-100+round(a.e/5*100));

Average number of errors per word 5.653061

Assertion failed.

3   Fail
%% rng default; a.words0=cellstr(unique(char('A'+ceil(26*rand([200,4]).^2)-1),'rows'))'; a.e=0; for n=randperm(numel(a.words0)) a.i=n; a.words=a.words0; a.n=n; for m=1:100, a.m=m; assignin('caller','a',a); letter=hangman(a.words); letter=char(letter(1)); a=evalin('caller','a'); m=a.m; matchedletters=a.words{a.i}==letter; if ~any(matchedletters), a.e=a.e+1; end matchedwords=find(cellfun(@(x)isequal(matchedletters,x==letter),a.words)); a.i=find(matchedwords==a.i); a.words=regexprep(a.words(matchedwords),letter,''); nonemptywords=find(cellfun('length',a.words)>0); a.i=find(nonemptywords==a.i); if isempty(a.i), break; end end if ~isempty(a.i), error(sprintf('algorithm did not guess word after 100 steps. Last message: Target word %s; Step %d; Word list %s; Guessed letter %c\n',a.words{a.i},a.m,sprintf('%s ',a.words{:}),letter)); end n=a.n; end a.e=a.e/numel(a.words0); fprintf('Average number of errors per word %f\n',a.e); assert(a.e<5); assignin('caller','score',evalin('caller','score')-100+round(a.e/5*100));

Average number of errors per word 4.380000

Undefined function or variable 'score'.