0_0_13893340_6685.cpp: In function 'void fft(int*, int)':
0_0_13893340_6685.cpp:21:29: error: 'kuai' was not declared in this scope
long long ni=kuai(len,mod-2);
^
0_0_13893340_6685.cpp: In function 'void kuaifft(int)':
0_0_13893340_6685.cpp:48:8: error: 'f' was not declared in this scope
fft(f,1);fft(h1,1);
^
0_0_13893340_6685.cpp:48:21: error: cannot convert 'long long int*' to 'int*' for argument '1' to 'void fft(int*, int)'
fft(f,1);fft(h1,1);
^
0_0_13893340_6685.cpp:49:8: error: 'i' was not declared in this scope
for(i=0;i<len;i++) f[i]=f[i]*h1[i]%mod;
^
0_0_13893340_6685.cpp:52:10: error: cannot convert 'long long int*' to 'int*' for argument '1' to 'void fft(int*, int)'
fft(h,1);
^
0_0_13893340_6685.cpp:53:7: error: 'i' was not declared in this scope
for(i=0;i<len;i++) h[i]=h[i]*h[i]%mod;
^
0_0_13893340_6685.cpp:54:11: error: cannot convert 'long long int*' to 'int*' for argument '1' to 'void fft(int*, int)'
fft(h,-1);
^
0_0_13893340_6685.cpp:55:7: error: 'i' was not declared in this scope
for(i=nowp+1;i<len;i++) h[i]=0;
^
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