http://poj.org/problem?id=1761 #include<iostream> #include"string.h" #include"stdio.h" using namespace std; char name[62][10],w[10]; long ci[62][9],ti[62][9]; int main() {long i,n,j,m,t,c;char q,a; for(i=0;i<62;i++) for(j=0;j<9;j++){ti[i][j]=-1;ci[i][j]=0;} cin>>n; m=0; while(n--) {cin>>t>>w>>q>>a; for(i=0;i<m;i++)if(strcmp(name[i],w)==0)break; if(i==m){m++;strcpy(name[m-1],w);} j=q-'A'; if(ti[i][j]==-1){ci[i][j]++;if(a=='A')ti[i][j]=t;} } int ac; for(j=0;j<9;j++) {c=0;t=0;ac=0; for(i=0;i<62;i++) if(ti[i][j]!=-1){ac++;c+=ci[i][j];t+=ti[i][j];} printf("%c %ld",j+'A',ac); if(ac)printf(" %.2f %.2f",(float)c/ac,(float)t/ac); printf("n"); } return 0; }
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