cf#320 Div.2 Problem C A Problem about Polyline
#include
#include
#include
using namespace std;
double ans,a;
int x,y;
int main(){
scanf("%d%d",&x,&y);
if(y==x){
printf("%.12lf\n",(double)x);
}
else if(x<y){
print
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2015-09-17 02:44:26 ·
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