比赛 |
NOIP2008集训模拟2 |
评测结果 |
AAAAAAAAAAAAAAAWWWWW |
题目名称 |
沙漠赛道 |
最终得分 |
75 |
用户昵称 |
Hamster |
运行时间 |
0.000 s |
代码语言 |
Pascal |
内存使用 |
0.00 MiB |
提交时间 |
2008-11-11 11:21:47 |
显示代码纯文本
program mirage;
var
fin,fout:text;
zrgz,djgz:array[1..4] of real;
zrq,djq:array[1..100000] of real;
zrdl,djdl,s,ss,ss1,ss2,ss3,zr1,dj1:real;
i,j,n,k1,k2:integer;
procedure init;
begin
for i:=1 to 4 do read(fin,zrgz[i]);
for i:=1 to 4 do read(fin,djgz[i]);
read(fin,zr1,dj1);
read(fin,n);
ss:=0;
k2:=0;
k1:=0;
for i:=1 to n do
begin
readln(fin,s,j);
ss1:=ss1+s;
if j=0 then
begin
inc(k1);
zrq[k1]:=s;
ss2:=ss2+s*2;
end
else
begin
inc(k2);
djq[k2]:=s;
ss3:=ss3+s*2;
end;
end;
end;
procedure jisuan;
var
a1,a2,a3,a4,a5,a6,a7,a10:real;
asw1,asw2,asw3,asw4:real;
begin
a4:=zr1/(zr1+dj1);
a5:=dj1/(zr1+dj1);
a1:=1;
a2:=1;
for i:=1 to 4 do
begin
a1:=(1-zrgz[i])*a1;
a2:=(1-djgz[i])*a2;
end;
asw3:=(1-a1)*(1-a2);
asw1:=a1*(1-a2)+a1*a2*a4;
asw2:=a2*(1-a1)+a1*a2*a5;
writeln(fout,asw1:0:2,' ',asw2:0:2,' ',asw3:0:2);
a6:=1;
for i:=1 to k2 do
begin
a10:=exp(ln(djq[i])/n);
a6:=a6*a10;
end;
for i:=1 to k1 do
begin
a10:=exp(ln(zrq[i])/n);
a6:=a6*a10;
end;
a7:=ss1-a6*n;
asw4:=asw1*(ss1-ss2)+asw2*(ss1-ss3)+asw3*a7;
writeln(fout,asw4:0:2);
end;
begin
assign(fin,'mirage.in');
assign(fout,'mirage.out');
reset(fin);
rewrite(fout);
init;
jisuan;
close(fin);
close(fout);
end.