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< a href = "#func-members" > Functions< / a > < / div >
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< div class = "headertitle" > < div class = "title" > sol2.c File Reference< / div > < / div >
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< p > < a href = "https://projecteuler.net/problem=3" target = "_blank" > Problem 3< / a > solution
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< a href = "#details" > More...< / a > < / p >
< div class = "textblock" > < code > #include < stdio.h> < / code > < br / >
< / div > < div class = "textblock" > < div class = "dynheader" >
Include dependency graph for sol2.c:< / div >
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< div class = "center" > < iframe scrolling = "no" frameborder = "0" src = "../../d5/d3e/problem__3_2sol2_8c__incl.svg" width = "162" height = "127" > < p > < b > This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.< / b > < / p > < / iframe >
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Functions< / h2 > < / td > < / tr >
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< tr class = "memitem:ae66f6b31b5ad750f1fe042a706a4e3d4" > < td class = "memItemLeft" align = "right" valign = "top" > int  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../d2/dbc/problem__3_2sol2_8c.html#ae66f6b31b5ad750f1fe042a706a4e3d4" > main< / a > ()< / td > < / tr >
< tr class = "memdesc:ae66f6b31b5ad750f1fe042a706a4e3d4" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > Main function. < a href = "../../d2/dbc/problem__3_2sol2_8c.html#ae66f6b31b5ad750f1fe042a706a4e3d4" > More...< / a > < br / > < / td > < / tr >
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< a name = "details" id = "details" > < / a > < h2 class = "groupheader" > Detailed Description< / h2 >
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< div class = "textblock" > < p > < a href = "https://projecteuler.net/problem=3" target = "_blank" > Problem 3< / a > solution < / p >
< p > Problem:< / p >
< p > The prime factors of 13195 are 5,7,13 and 29. What is the largest prime factor of a given number N? e.g. for 10, largest prime factor = 5. For 17, largest prime factor = 17. < / p >
< / div > < h2 class = "groupheader" > Function Documentation< / h2 >
< a id = "ae66f6b31b5ad750f1fe042a706a4e3d4" name = "ae66f6b31b5ad750f1fe042a706a4e3d4" > < / a >
< h2 class = "memtitle" > < span class = "permalink" > < a href = "#ae66f6b31b5ad750f1fe042a706a4e3d4" > ◆ < / a > < / span > main()< / h2 >
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< div class = "memproto" >
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< tr >
< td class = "memname" > int main < / td >
< td > (< / td >
< td class = "paramtype" > void  < / td >
< td class = "paramname" > < / td > < td > )< / td >
< td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > Main function. < / p >
< div class = "fragment" > < div class = "line" > < a id = "l00015" name = "l00015" > < / a > < span class = "lineno" > 15< / span > {< / div >
< div class = "line" > < a id = "l00016" name = "l00016" > < / a > < span class = "lineno" > 16< / span > < span class = "keywordtype" > int< / span > n = 0;< / div >
< div class = "line" > < a id = "l00017" name = "l00017" > < / a > < span class = "lineno" > 17< / span > scanf(< span class = "stringliteral" > " %d" < / span > , & n);< / div >
< div class = "line" > < a id = "l00018" name = "l00018" > < / a > < span class = "lineno" > 18< / span > < span class = "keywordtype" > int< / span > < a class = "code hl_function" href = "../../d1/ded/group__misc.html#gac1a7a8e00eeb590511465c28fae16e54" > prime< / a > = 1;< / div >
< div class = "line" > < a id = "l00019" name = "l00019" > < / a > < span class = "lineno" > 19< / span > < span class = "keywordtype" > int< / span > i = 2;< / div >
< div class = "line" > < a id = "l00020" name = "l00020" > < / a > < span class = "lineno" > 20< / span > < span class = "keywordflow" > while< / span > (i * i < = n)< / div >
< div class = "line" > < a id = "l00021" name = "l00021" > < / a > < span class = "lineno" > 21< / span > {< / div >
< div class = "line" > < a id = "l00022" name = "l00022" > < / a > < span class = "lineno" > 22< / span > < span class = "keywordflow" > while< / span > (n % i == 0)< / div >
< div class = "line" > < a id = "l00023" name = "l00023" > < / a > < span class = "lineno" > 23< / span > {< / div >
< div class = "line" > < a id = "l00024" name = "l00024" > < / a > < span class = "lineno" > 24< / span > < a class = "code hl_function" href = "../../d1/ded/group__misc.html#gac1a7a8e00eeb590511465c28fae16e54" > prime< / a > = i;< / div >
< div class = "line" > < a id = "l00025" name = "l00025" > < / a > < span class = "lineno" > 25< / span > n /= i;< / div >
< div class = "line" > < a id = "l00026" name = "l00026" > < / a > < span class = "lineno" > 26< / span > }< / div >
< div class = "line" > < a id = "l00027" name = "l00027" > < / a > < span class = "lineno" > 27< / span > i += 1;< / div >
< div class = "line" > < a id = "l00028" name = "l00028" > < / a > < span class = "lineno" > 28< / span > }< / div >
< div class = "line" > < a id = "l00029" name = "l00029" > < / a > < span class = "lineno" > 29< / span > < span class = "keywordflow" > if< / span > (n > 1)< / div >
< div class = "line" > < a id = "l00030" name = "l00030" > < / a > < span class = "lineno" > 30< / span > < a class = "code hl_function" href = "../../d1/ded/group__misc.html#gac1a7a8e00eeb590511465c28fae16e54" > prime< / a > = n;< / div >
< div class = "line" > < a id = "l00031" name = "l00031" > < / a > < span class = "lineno" > 31< / span > printf(< span class = "stringliteral" > " %d\n" < / span > , < a class = "code hl_function" href = "../../d1/ded/group__misc.html#gac1a7a8e00eeb590511465c28fae16e54" > prime< / a > );< / div >
< div class = "line" > < a id = "l00032" name = "l00032" > < / a > < span class = "lineno" > 32< / span > < span class = "keywordflow" > return< / span > 0;< / div >
< div class = "line" > < a id = "l00033" name = "l00033" > < / a > < span class = "lineno" > 33< / span > }< / div >
< div class = "ttc" id = "agroup__misc_html_gac1a7a8e00eeb590511465c28fae16e54" > < div class = "ttname" > < a href = "../../d1/ded/group__misc.html#gac1a7a8e00eeb590511465c28fae16e54" > prime< / a > < / div > < div class = "ttdeci" > void prime(int *p)< / div > < div class = "ttdoc" > Prime Sieve works in O(nlogn) time.< / div > < div class = "ttdef" > < b > Definition:< / b > prime_seive.c:21< / div > < / div >
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Here is the call graph for this function:< / div >
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