txtkeqm 2009-11-09 04:36:00
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第九个点是什么?我用xor做的,为什么会超时?还有第十个点,总是输出错误答案,望哪位大牛肯赐教!!
Program p510;
var g:array[1..2] of int64;
ans:int64;
a,b,n,x,i,j,m,l,res:longint;
s:ansistring;
begin
readln(x,a,b,n,m);
fillchar(g,sizeof(g),0);
for i:=1 to m do
begin
readln(s);
l:=length(s);
res:=ord(s[1]);
for j:=2 to l do
res:=res xor ord(s[j]);
g[1]:=g[1]+res mod 19920229;
end;
for i:=m+1 to x do
begin
readln(s);
l:=length(s);
res:=ord(s[1]);
for j:=2 to l do
res:=res xor ord(s[j]);
g[2]:=g[2]+res mod 19920229;
end;
for i:=1 to n do
begin
ans:=((a*g[1]) mod 19920229+(b*g[2]) mod 19920229) mod 19920229;
g[1]:=g[2];
g[2]:=ans;
end;
write(ans);
end.