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0_0_24949368_22322.cpp:17:13: error: stray '\243' in program
             f[i]=min(f[i],f[i-j]*2+(ll)（pow(2,j)-1）);//当j= 64的时候，达到题目要求的最大范围，2^64-1正好也是unsigned long long 的最大表示范围; 
             ^
0_0_24949368_22322.cpp:17:13: error: stray '\250' in program
0_0_24949368_22322.cpp:17:13: error: stray '\243' in program
0_0_24949368_22322.cpp:17:13: error: stray '\251' in program