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< a href = "#define-members" > Macros< / a > |
< a href = "#func-members" > Functions< / a > < / div >
< div class = "headertitle" >
< div class = "title" > union_find.c File Reference< / div > < / div >
< / div > <!-- header -->
< div class = "contents" >
< p > < a href = "https://en.wikipedia.org/wiki/Disjoint-set_data_structure" > Union find< / a > algorithm.
< a href = "#details" > More...< / a > < / p >
< div class = "textblock" > < code > #include < stdio.h> < / code > < br / >
< code > #include < stdlib.h> < / code > < br / >
< / div > < div class = "textblock" > < div class = "dynheader" >
Include dependency graph for union_find.c:< / div >
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#define  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../df/df3/union__find_8c.html#a0592dba56693fad79136250c11e5a7fe" > MAX_SIZE< / a >       1000< / td > < / tr >
< tr class = "memdesc:a0592dba56693fad79136250c11e5a7fe" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > maximum number of elements in the set < br / > < / td > < / tr >
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< tr class = "memitem:a3e13b69cce5a1b25ae034798092f3d86" > < td class = "memItemLeft" align = "right" valign = "top" > int  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../df/df3/union__find_8c.html#a3e13b69cce5a1b25ae034798092f3d86" > find< / a > (int *p, int x)< / td > < / tr >
< tr class = "memdesc:a3e13b69cce5a1b25ae034798092f3d86" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > Find index of or value in an array. < a href = "../../df/df3/union__find_8c.html#a3e13b69cce5a1b25ae034798092f3d86" > More...< / a > < br / > < / td > < / tr >
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< tr class = "memitem:af2f3ff6d98641f7d3be11f071c97908a" > < td class = "memItemLeft" align = "right" valign = "top" > void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../df/df3/union__find_8c.html#af2f3ff6d98641f7d3be11f071c97908a" > join< / a > (int *p, int x, int y)< / td > < / tr >
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int  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../df/df3/union__find_8c.html#ae66f6b31b5ad750f1fe042a706a4e3d4" > main< / a > ()< / td > < / tr >
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< a name = "details" id = "details" > < / a > < h2 class = "groupheader" > Detailed Description< / h2 >
< div class = "textblock" > < p > < a href = "https://en.wikipedia.org/wiki/Disjoint-set_data_structure" > Union find< / a > algorithm. < / p >
< / div > < h2 class = "groupheader" > Function Documentation< / h2 >
< a id = "a3e13b69cce5a1b25ae034798092f3d86" > < / a >
< h2 class = "memtitle" > < span class = "permalink" > < a href = "#a3e13b69cce5a1b25ae034798092f3d86" > ◆ < / a > < / span > find()< / h2 >
< div class = "memitem" >
< div class = "memproto" >
< table class = "memname" >
< tr >
< td class = "memname" > int find < / td >
< td > (< / td >
< td class = "paramtype" > int *  < / td >
< td class = "paramname" > < em > p< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > int  < / td >
< td class = "paramname" > < em > x< / em >   < / td >
< / tr >
< tr >
< td > < / td >
< td > )< / td >
< td > < / td > < td > < / td >
< / tr >
< / table >
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< p > Find index of or value in an array. < / p >
< dl class = "params" > < dt > Parameters< / dt > < dd >
< table class = "params" >
< tr > < td class = "paramdir" > [in,out]< / td > < td class = "paramname" > p< / td > < td > array to search and update < / td > < / tr >
< tr > < td class = "paramdir" > < / td > < td class = "paramname" > x< / td > < td > value to search < / td > < / tr >
< / table >
< / dd >
< / dl >
< dl class = "section return" > < dt > Returns< / dt > < dd > value at the index < code > x< / code > < / dd > < / dl >
< div class = "fragment" > < div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   {< / div >
< div class = "line" > < a name = "l00019" > < / a > < span class = "lineno" > 19< / span >   < span class = "keywordflow" > if< / span > (x > = < a class = "code" href = "../../df/df3/union__find_8c.html#a0592dba56693fad79136250c11e5a7fe" > MAX_SIZE< / a > )< / div >
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< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   fprintf(stderr, < span class = "stringliteral" > " Out-of bounds value\n" < / span > );< / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   exit(EXIT_FAILURE);< / div >
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< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   < / div >
< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   < span class = "keywordflow" > if< / span > (p[x] == x)< / div >
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< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   < span class = "keywordflow" > return< / span > x;< / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   }< / div >
< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   < span class = "keywordflow" > else< / span > < / div >
< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   {< / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   p[x] = < a class = "code" href = "../../df/df3/union__find_8c.html#a3e13b69cce5a1b25ae034798092f3d86" > find< / a > (p, p[x]);< / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   < span class = "keywordflow" > return< / span > p[x];< / div >
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< a id = "af2f3ff6d98641f7d3be11f071c97908a" > < / a >
< h2 class = "memtitle" > < span class = "permalink" > < a href = "#af2f3ff6d98641f7d3be11f071c97908a" > ◆ < / a > < / span > join()< / h2 >
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< td class = "memname" > void join < / td >
< td > (< / td >
< td class = "paramtype" > int *  < / td >
< td class = "paramname" > < em > p< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > int  < / td >
< td class = "paramname" > < em > x< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > int  < / td >
< td class = "paramname" > < em > y< / em >   < / td >
< / tr >
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< td > < / td >
< td > )< / td >
< td > < / td > < td > < / td >
< / tr >
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< p > Function to join. < / p >
< dl class = "params" > < dt > Parameters< / dt > < dd >
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< tr > < td class = "paramdir" > [in,out]< / td > < td class = "paramname" > p< / td > < td > array to join in < / td > < / tr >
< tr > < td class = "paramdir" > < / td > < td class = "paramname" > x< / td > < td > value or index to join to < / td > < / tr >
< tr > < td class = "paramdir" > < / td > < td class = "paramname" > y< / td > < td > value or index to join from < / td > < / tr >
< / table >
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< div class = "fragment" > < div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   { p[< a class = "code" href = "../../df/df3/union__find_8c.html#a3e13b69cce5a1b25ae034798092f3d86" > find< / a > (p, x)] = < a class = "code" href = "../../df/df3/union__find_8c.html#a3e13b69cce5a1b25ae034798092f3d86" > find< / a > (p, y); }< / div >
< / div > <!-- fragment --> < div class = "dynheader" >
Here is the call graph for this function:< / div >
< div class = "dyncontent" >
< div class = "center" > < iframe scrolling = "no" frameborder = "0" src = "../../df/df3/union__find_8c_af2f3ff6d98641f7d3be11f071c97908a_cgraph.svg" width = "144" height = "38" > < p > < b > This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.< / b > < / p > < / iframe >
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< / div >
< / div >
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< / div > <!-- contents -->
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< div class = "ttc" id = "aunion__find_8c_html_a0592dba56693fad79136250c11e5a7fe" > < div class = "ttname" > < a href = "../../df/df3/union__find_8c.html#a0592dba56693fad79136250c11e5a7fe" > MAX_SIZE< / a > < / div > < div class = "ttdeci" > #define MAX_SIZE< / div > < div class = "ttdoc" > maximum number of elements in the set< / div > < div class = "ttdef" > < b > Definition:< / b > union_find.c:8< / div > < / div >
< div class = "ttc" id = "aunion__find_8c_html_a3e13b69cce5a1b25ae034798092f3d86" > < div class = "ttname" > < a href = "../../df/df3/union__find_8c.html#a3e13b69cce5a1b25ae034798092f3d86" > find< / a > < / div > < div class = "ttdeci" > int find(int *p, int x)< / div > < div class = "ttdoc" > Find index of or value in an array.< / div > < div class = "ttdef" > < b > Definition:< / b > union_find.c:17< / div > < / div >
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< li class = "navelem" > < a class = "el" href = "../../dir_a52f4d3d586a58b02f3a4ddf0a992157.html" > misc< / a > < / li > < li class = "navelem" > < a class = "el" href = "../../df/df3/union__find_8c.html" > union_find.c< / a > < / li >
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