标签:style blog http color os for ar art
A. Little Pony and Crystal Mine
题意:输出一个类似于十字形的东西
题解:直接打印即可。。。
代码:
1 var n,i,j:longint; 2 begin 3 readln(n); 4 for i:=1 to n>>1 do 5 begin 6 for j:=1 to (n-i<<1+1)>>1 do write(‘*‘); 7 for j:=1 to i<<1-1 do write(‘D‘); 8 for j:=1 to (n-i<<1+1)>>1 do write(‘*‘); 9 writeln; 10 end; 11 for i:=1 to n do write(‘D‘);writeln; 12 for i:=n>>1 downto 1 do 13 begin 14 for j:=1 to (n-i<<1+1)>>1 do write(‘*‘); 15 for j:=1 to i<<1-1 do write(‘D‘); 16 for j:=1 to (n-i<<1+1)>>1 do write(‘*‘); 17 writeln; 18 end; 19 end. 20
B. Little Pony and Sort by Shift
题意:给你一个数列,每次可以把最后一个数调到第一个数,求最少需要多少次能把这个数列变成单调增
题解:把原数列复制一遍接到后面,从头往前扫一遍用一个临时变量记录答案即可
代码:
1 var n,i,cnt:longint; 2 a:array[0..250000] of longint; 3 begin 4 readln(n); 5 a[0]:=maxlongint; 6 for i:=1 to n do read(a[i]); 7 for i:=1 to n do a[n+i]:=a[i]; 8 cnt:=0; 9 for i:=1 to n<<1 do 10 if a[i]>=a[i-1] then 11 begin 12 inc(cnt); 13 if cnt=n-1 then break; 14 end 15 else cnt:=0; 16 if cnt<>n-1 then writeln(‘-1‘) 17 else if i=n then writeln(‘0‘) 18 else writeln(n<<1-i); 19 end.
CDE没看。。。或者看了不会。。。
Codeforces Round #259 (Div. 2),布布扣,bubuko.com
Codeforces Round #259 (Div. 2)
标签:style blog http color os for ar art
原文地址:http://www.cnblogs.com/zyfzyf/p/3915929.html