CodePudding user response:
S1, s2 is different character array, their value is the address of the first string, so never equalShould use STRCMP for string comparison
Or use of the c + + standard library STD: : string string instead of c style
CodePudding user response:
S1, s2 to allocate enough space in advance, char [] s1="" this not line, into a char s1 [256]; Such asCodePudding user response:
/*Implement the product of two dynamic matrix algorithm (linear algebra)
*/
/*
Errors may be in 55 to 70 rows, you can try running ~
*/
#include
using namespace std;
Int main ()
{
Int m1, n1, m2, n2;
Dm2 dm1 int * *, * * and * * dm3.
Cout & lt; <"Both Please input the first matrix size m1, n1:";
Cin & gt;> M1 & gt;> N1.
Dm1=new int * (m1);//matrix dm1, establishes the m1 line
for (int i=0; i
exit(0);
}
Cout & lt; <"Please input matrix dm1:";
for (int i=0; i
Cin & gt;> Dm1 [I] [j];
}
Cout & lt; <"Both Please input the first matrix size m2, n2:";
Cin & gt;> M2 & gt;> N2.
Dm2=new int * (m2), Line/dm2/matrix, the establishment of the m2
for (int i=0; i
exit(0);
}
Cout & lt; <"Please input matrix dm2:";
for (int i=0; i
Cin & gt;> Dm2 [I] [j];
}
If (n1! M2)={
Cout & lt; <"Input error matrix, please input again!!!!!! ";
}
The else {
//the new matrix ranks as m1, n2
Dm3=new int * (m1);//dm3 matrix, the establishment of the m1 line
for (int i=0; i
exit(0);
}
//input dm3
for (int i=0; i
For (int x=0; X & lt; M2; X++) {
Dm3 [I] [j] +=dm1 dm2 [I] [x] * [x] [j];
}
}
}
for (int i=0; i
For (int j=0; J & lt; N2. J++)
{
Cout & lt;
Cout & lt; <"\ n";
}
}
//release space
for (int i=0; i
}
The delete [] dm1;
for (int i=0; i
}
The delete [] dm2;
system("pause");
return 0;
}
CodePudding user response:
The