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公开ac了的代码!~~~ 需要如此的处理最后的结果!!!绝!!!#include <iostream> #include <math.h> #include <stdio.h> using namespace std; __int64 dic[10][2]={{0,0},{1,-1},{1,0},{1,1},{0,-1},{0,0},{0,1},{-1,-1},{-1,0},{-1,1}}; char str[1000001]; __int64 getarea(__int64 x1,__int64 y1,__int64 x2,__int64 y2) { return x1*y2-y1*x2; } int main() { int n; __int64 i,len,x1,y1,x2,y2,p; __int64 area; cin>>n; while (n--) { scanf("%s",str); len=strlen(str); area=0; x1=0,y1=0; for (i=0;i<len-1;i++) { p=str[i]-'0'; x2=x1+dic[p][0]; y2=y1+dic[p][1]; area+=getarea(x1,y1,x2,y2); x1=x2; y1=y2; } if(area<0) area=(-1)*area; __int64 temp=area/2; if(area!=temp*2) printf("%I64d.5\n",temp); else printf("%I64d\n",temp); } return 0; } Followed by:
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