Created
June 6, 2010 15:45
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// 9x9, 奇数に使えるパターン 55 byte, 53 chars | |
for(i=81;i--;document.write("■□"[i&1],i%9?"":"<br>")); | |
// 10x10, 偶数に使えるパターン 54 byte, 52 chars | |
for(i=110;i--;document.write(i%11?"□■"[i&1]:"<br>")); | |
var N = 10; | |
var pat = "■□■"; | |
for (i = 0; i < N; ++i) { | |
for (j = 0; j < N; ++j) { | |
document.write(pat[(j & 1) + (i & 1)]); | |
} | |
document.write("<br>"); | |
} | |
var N = 10; | |
var pat = [["■","□"], ["□","■"]]; | |
for (i = 0; i < N; ++i) { | |
for (j = 0; j < N; ++j) { | |
document.write(pat[i&1][j&1]); | |
} | |
document.write("<br />"); | |
} | |
var N = 10; | |
var f, s = "■□"; | |
for (var i = 0; i < N; ++i) { | |
f = 1 & i; | |
for (var j = 0; j < N; ++j) { | |
document.write(s[f]); | |
f ^= 1; | |
} | |
document.write("<br />"); | |
} | |
var N = 10; | |
for (i = 0; i < N; i++) { | |
if (i & 1) { | |
document.write("□■□■□■□■□■<br />"); | |
} else { | |
document.write("■□■□■□■□■□<br />"); | |
} | |
} | |
var N = 10; | |
for (i = 0; i < N; i++) { | |
for (j = 0; j < N; j++) { | |
if (i & 1) { | |
if (j & 1) { | |
document.write("■"); | |
} else { | |
document.write("□"); | |
} | |
} else { | |
if (j & 1) { | |
document.write("□"); | |
} else { | |
document.write("■"); | |
} | |
} | |
} | |
document.write("<br />"); | |
} | |
const WHITE = 1, BLACK = 0; | |
function getColor(x, y) { | |
if (x & 1) { | |
if (y & 1) { | |
return BLACK; | |
} else { | |
return WHITE; | |
} | |
} else { | |
if (y & 1) { | |
return WHITE; | |
} else { | |
return BLACK; | |
} | |
} | |
} | |
var N = 10; | |
for (i = 0; i < N; i++) { | |
for (j = 0; j < N; j++) { | |
var color = getColor(j, i); | |
if (WHITE == color) { | |
document.write("□"); | |
} else if (BLACK == color){ | |
document.write("■"); | |
} else { | |
document.write("?"); | |
} | |
} | |
document.write("<br>"); | |
} | |
/* 以下ショートコーディング過程の失敗など */ | |
//for(i=0;document.write(++i%11?"□■"[i&1]:"<br>"),i<109;); | |
//for(i=0;i<109;document.write(++i%11?"□■"[i&1]:"<br>")); | |
//for(i=0;i<109;document.write(++i%11?"□■"[i&1]:"<br>")); | |
//for(i=110;i--;document.write(i%11?"□■"[i&1]:"<br>")); | |
//for(j=i=100;i--;document.write("□■"[j^i&1]+(i%10?"":(j=!j,"<br>")))); | |
//for(i=81;i--;document.write("■□"[i&1]+(i%9?"":"<br>"))); | |
//for(i=81;i--;document.write("■□"[i&1],i%9?"":"<br>")); | |
//for(i=110;i--;document.write(i%11?"□■"[i&1]:"<br>")); | |
//for(i=81;i--;document.write("■□"[i&1]+(i%9?"":"<br>"))); | |
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