题解 | #求int型正整数在内存中存储时1的个数#
求int型正整数在内存中存储时1的个数
https://www.nowcoder.com/practice/440f16e490a0404786865e99c6ad91c9
num_input = input('');
num_2 = dec2bin(num_input);
str_2 = num2str(num_2);
ind_all = strfind(str_2,'1');
printf("%d\n",sum(length(ind_all)));
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