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bitset_quiz1.set(27);
int_quiz1 ¨‡=1UL<<27;
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    bitset<30> bitset_quiz1;     //  bitset solution
     unsigned long int_quiz1 = 0; // simulated collection of bits
In the bitset case we can define bitset_quiz1 to be exactly the size we need. By default each of the bits is set to zero. In the case where we use a built-in type to hold our quiz results, we define int_quiz1 as an unsigned long, meaning that it will have at least 32 bits on any machine. Finally, we explicitly initialize int_quiz1 to ensure that the bits start out with well-defined values.

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     bitset_quiz1.set(27);   //  indicate student number 27 passed
     int_quiz1 |= 1UL<<27;   //  indicate student number 27 passed
µÚÒ»¸öbitsetÖ±½Ó.set¾Í¿ÉÒÔ,×¢ÒâµÚ¶þ¸öÊǸö¼òдµÄλ»ò²Ù×÷(|=),1UL<<27Ö®ºó,´ÓÓÒÍù×óµÚ27λÖÃ1,È»ºóÓëint_quiz1°´Î»Óë,¿ÉÒÔ½«int_quiz1µÄµÚ27λÖÃ1,¶ø²»Ó°ÏìÆäËûѧÉúµÄ³É¼¨.
matlab/VB/python/c++/Javaд³ÌÐòÇë·¢QQÓʼþ:790404545@qq.com
2Â¥2013-06-04 17:20:44
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benchurry

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2Â¥: Originally posted by libralibra at 2013-06-04 17:20:44
ÕâÊǶ¨ÒåµÄÄǶλ°
    bitset<30> bitset_quiz1;     //  bitset solution
     unsigned long int_quiz1 = 0; // simulated collection of bits
In the bitset case we can define bitset_quiz1 to be ex ...

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3Â¥2013-06-05 08:45:08
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