Cè¨èªã®å¯å¤é·å¼æ°ã¯ãåå®å ¨ã§ãªãï¼ã¾ã¡ãã£ãåã®å¼æ°ã渡ãã¦ãã³ã³ãã¤ã«ã¨ã©ã¼ã«ãªããªãï¼ã¨ããã¦ãã¾ããããã¯è¨èªä»æ§ã®ç解ã¨ãã¦ã¯æ£ããã®ã§ãããç¹å®ã®åã®å¼æ°ãä»»æã®åæ°ã¨ãé¢æ°ã«éã£ã¦ã¯ããã¯ãã使ããã¨ã§åå®å ¨æ§ã確ä¿ãããã¨ãã§ãã¾ãã ä»»æã®åæ°ã®doubleãå¼æ°ã«ã¨ãããã®åãè¿ãé¢æ°ãsumfããä¾ã«ããã¦èª¬æãã¾ãã Cè¨èªã®å¯å¤é·å¼æ°æ©æ§ã使ã£ã¦sumfãå®ç¾©ããã¨ã以ä¸ã®ããã«ãªãã¾ãã #include <math.h> #include <stdarg.h> #include <stdio.h> static double sumf(double nfirst, ...) { double r = 0, n; va_list args; va_start(args, nfirst); for (n = nfirst; ! isnan(n); n = va_a
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