为什么要乘以2?
代码
#include<stdio.h>
int main()
{
int n,y,i,j,k;
char x,c,v;
char A[27],a[27];
for(c='A',i=1,v='a';v<='z',i<=26,c<='Z';v++,i++,c++){
A[i]=c;
a[i]=v;
}
scanf("%d",&n);
for(j=0;j<2*n;j++){
scanf("%c %d",&x,&y);
printf("j=%d ",j);
for(i=1;i<=26;i++){
if(x==A[i]){
printf("%d\n",i+y);
break;
}
}
for(k=1;k<=26;k++){
if(x==a[k]){
printf("%d\n",-k+y);
break;
}
}
}
return 0;
}