1349: [Baltic2006]Squint
Time Limit: 1 Sec Memory Limit: 64 MBSubmit: 427 Solved: 248
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Description
Write a program to calculate integer square roots.
Input
The input is read from a text file named squint.in. Its only line consists of an integer 0 < = n < 2^63 .
Output
Its only line consists of the smallest nonnegative integer q such that q^2 >= n .
Sample Input
122333444455555
Sample Output
11060446
HINT
sqrt(122333444455555)=11060445.038765619 .
Source
题解：题目说的很明白了——跟我念square root——平方根= =
然后就没别的了，注意设求出的平方根为r,则({r}^{2} >= N)= =为此又逗比了几次= =
1 /************************************************************** 2 Problem: 1349 3 User: HansBug 4 Language: Pascal 5 Result: Accepted 6 Time:0 ms 7 Memory:220 kb 8 ****************************************************************/ 9 10 var i,j:qword; 11 begin 12 readln(i); 13 j:=trunc(sqrt(i)); 14 if (j*j)<>i then inc(j); 15 writeln(j);readln; 16 end.