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#include<stdio.h> #include<math.h> #include<string.h> #include<stdbool.h> #define FORT(i,a,b) for(int i=a;i<b;i++) #define FORD(i,a,b) for(int i=a-1;i>=b;i--) struct SV { int masv; char ten[100]; float da,db,dc; }; FILE *f; int const ssv=sizeof(struct SV); void them() { struct SV neww; int ma=0; f=fopen("B19DCCN263.bin","ab+"); if (fread(&neww,ssv,1,f)) { fseek(f,-ssv,SEEK_END); fread(&neww,ssv,1,f); ma=neww.masv; } int sl; scanf("%d",&sl); FORT(i,0,sl) { ma++; neww.masv=ma; gets(neww.ten); gets(neww.ten); scanf("%f%f%f",&neww.da,&neww.db,&neww.dc); fwrite(&neww,ssv,1,f); } fclose(f); printf("%d",sl); } void capnhat() { struct SV neww1,neww2; scanf("%d",&neww1.masv); gets(neww1.ten); gets(neww1.ten); scanf("%f%f%f",&neww1.da,&neww1.db,&neww1.dc); f=fopen("B19DCCN263.bin","rb+"); while (fread(&neww2,ssv,1,f)) { if (neww2.masv==neww1.masv) { fseek(f,-ssv,SEEK_CUR); fwrite(&neww1,ssv,1,f); break; } } fclose(f); printf("%d",neww1.masv); } void in() { struct SV neww,a[100]={}; int n=-1; f=fopen("B19DCCN263.bin","rb"); while (fread(&neww,ssv,1,f)) { n++; a[n]=neww; } FORT(i,0,n+1) FORT(j,i+1,n+1) { float tmp1=a[i].da+a[i].db+a[i].dc,tmp2=a[j].da+a[j].db+a[j].dc; if (tmp1>tmp2) { struct SV tmp=a[i]; a[i]=a[j]; a[j]=tmp; } } FORT(i,0,n+1) printf("%d %s %.1f %.1f %.1f\n",a[i].masv,a[i].ten,a[i].da,a[i].db,a[i].dc); fclose(f); } int main() { int cn; scanf("%d",&cn); switch(cn) { case 1: them(); break; case 2: capnhat(); break; case 3: in(); break; } return 0; }
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