C 655 not golfed

Code creates weighted sum of chars for each string. If the difference is zero then they are equal, including 2 empty strings:

 #include <stdio.h> #define N 100 #define P(x) printf(x) #define G(x) gets_s(x) void e(int x){ x ? P("equal\n") : P("not equal\n"); } int main() { char s[N], t[N];//words char *p = 0, *q = 0; int r = 0; //result 0=false int n=0, m=0; //weighted sums int i = 1; //char pos start at 1 if ((p=gets_s(s)) && (q=gets_s(t))) { while (*p) { n += i*(int)*p; m += i*(int)*q; i++; p++; q++; if (!(*q)){ break; } } if (!*p && !*q){ //both same length strings if (!(m - n)){ r = 1; } //weighted sums are equal }//else r=0, false=>not equal e(r); } else{ P("error\n"); } getchar(); } 

C 342 golfed

#include <stdio.h> #define N 100 #define P(x) printf("%s\n",x) #define G(x) gets(x) void e(int x){x?P("y"):P("n");} int main(){ char s[N],t[N];char *p,*q;int r=0; int n=0,m=0;int i=1;p=s,q=t; if((p=G(s))&&(q=G(t))){while (*p){n+=i*(int)*p;m+=i*(int)*q;i++;p++;q++;if(!(*q)){break;}} if(!*p&!*q){if(!(m-n)){r=1;}}e(r);} return 0; } 

Note: Visual Studio complains if you don't use their safe methods eg gets_s. CodeBlocks with mingw compiles without warnings.

C 655 not golfed

Code creates weighted sum of chars for each string. If the difference is zero then they are equal, including 2 empty strings:

 #include <stdio.h> #define N 100 #define P(x) printf(x) #define G(x) gets_s(x) void e(int x){ x ? P("equal\n") : P("not equal\n"); } int main() { char s[N], t[N];//words char *p = 0, *q = 0; int r = 0; //result 0=false int n=0, m=0; //weighted sums int i = 1; //char pos start at 1 if ((p=gets_s(s)) && (q=gets_s(t))) { while (*p) { n += i*(int)*p; m += i*(int)*q; i++; p++; q++; if (!(*q)){ break; } } if (!*p && !*q){ //both same length strings if (!(m - n)){ r = 1; } //weighted sums are equal }//else r=0, false=>not equal e(r); } else{ P("error\n"); } getchar(); }