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a.c (with a.h expanded)
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| #include<stdio.h> | |
| #include<string.h> | |
| #include<stdlib.h> | |
| #include<sys/mman.h> | |
| typedef void V;typedef int I;typedef double F;typedef unsigned char C,*S;typedef long L; | |
| #define O printf | |
| #define R return | |
| #define I(a...) if(a) | |
| #define W(a...) while(a) | |
| #define A(a...) {if(!(a))R 0;} | |
| #define Q(x,s) {if(x)R O("ERROR: %s\n",s),(S)0;} | |
| #define P(x,a...) {if(x)R a;} | |
| #define N(n,a...) {I i=0,_i=(n);for(;i<_i;++i){a;}} | |
| #define J(n,a...) {I j=0,_j=(n);for(;j<_j;++j){a;}} | |
| #define MIN(a,b) ({typeof(a)_a=(a);typeof(a)_b=(b);_a<_b?_a:_b;}) | |
| #define MAX(a,b) ({typeof(a)_a=(a);typeof(a)_b=(b);_a>_b?_a:_b;}) | |
| #define L8 (8==sizeof(L)) | |
| __inline S map(L*n,S s){I d=open(s,0);Q(0>d,s)L b[22];R fstat(d,&b),s=mmap(0,*n=b[L8+5],PROT_READ,MAP_PRIVATE,d,0),close(d),s;} | |
| // reassemble(5-25hours 70-300lines) READ(.5hour) k(1hour) c(1hour) 6lines | |
| // overlap | |
| I f(S s,S t){I a=strlen(s),b=strlen(t),m=0;P(strstr(s,t),b)N(MIN(a,b),I(!memcmp(s+a-i,t,i))m=i)R m;} | |
| // merge | |
| V g(I n,S*b){I m=0,mi=0,mj=1;N(n,J(n,I k=i!=j?f(b[i],b[j]):0;I(m<k)m=k,mi=i,mj=j)) // max(m mi mj) | |
| S s=b[mi],t=b[mj];b[mi]=strcat(strcpy(malloc(strlen(s)+strlen(t)+1-m),s),t+m),b[mj]=b[n-1],free(s),free(t);} | |
| // run | |
| I main(I n,S*x){L m;S b[20000],s=map(&m,x[1]);A(s) | |
| n=0;N(m-1,I h;I('{'==s[i])h=i+1;I('}'==s[i])b[n++]=strndup(s+h,i-h)) | |
| W(1<n)g(n--,b);O("%s\n",*b),free(*b);} |
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