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#include <stdio.h>
unsigned int reverse_bits(unsigned int value)
{
unsigned int answer;
unsigned int i;
answer = 0;
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g++ -Wall hellocpp.cpp
gcc -Wall hellocpp.cpp -lstdc++
gfortran -Wall hellocpp.cpp -lstdc++
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unsigned int a=20;
signed int b=-130;
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char cmd[128];
...
int status = system(cmd);
printf("%d == system(\"%s\");\n", WEXITSTATUS(status), cmd); //´òÓ¡·µ»ØÖµ
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