{"trustable":false,"prependHtml":"\u003cscript\u003e window.katexOptions \u003d { disable: true }; \u003c/script\u003e\n\u003cscript type\u003d\"text/x-mathjax-config\"\u003e\n MathJax.Hub.Config({\n tex2jax: {\n inlineMath: [[\u0027$$$\u0027,\u0027$$$\u0027], [\u0027$\u0027,\u0027$\u0027]],\n displayMath: [[\u0027$$$$$$\u0027,\u0027$$$$$$\u0027], [\u0027$$\u0027,\u0027$$\u0027]]\n }\n });\n\u003c/script\u003e\n\u003cscript async src\u003d\"https://mathjax.codeforces.org/MathJax.js?config\u003dTeX-AMS-MML_HTMLorMML\" type\u003d\"text/javascript\"\u003e\u003c/script\u003e","sections":[{"title":"","value":{"format":"HTML","content":"众所周知,字符\u0027a\u0027的ASCII码是97。\u003cbr\u003e\n现在,求一组给定的数字中有多少个字母a。\u003cbr\u003e\n请注意,这里的数字是由计算机中的32位整数给出的。\u003cbr\u003e\n也就是说,1位代表4个字符(一个字符由8位二进制数字表示)。"}},{"title":"Input","value":{"format":"HTML","content":"多组输入,每组输入第一行是n,表示有n个整数,接下来给出n个数a(i)。\u003cbr\u003e\n(n\u003c\u003d100,1\u003c\u003da(i)\u003c2^32)"}},{"title":"Output","value":{"format":"HTML","content":"输出有多少个字符a"}},{"title":"Sample Input","value":{"format":"HTML","content":"\u003cpre\u003e3\n97 24929 100\u003c/pre\u003e"}},{"title":"Sample Output","value":{"format":"HTML","content":"\u003cpre\u003e3\u003c/pre\u003e"}}]}