Un entier positif x est un triangle carré ssi il y a deux entiers positifs différents, y et z , qui sont plus petits que x tels que toutes les sommes
x + y
x + z
y + z
sont des carrés parfaits.
Par exemple, 30 est un nombre de triangle carré car
30 + 6 = 6 2
30 + 19 = 7 2
6 + 19 = 5 2
Votre tâche consiste à écrire du code qui prend en entrée un entier positif et détermine s'il s'agit ou non d'un nombre triangulaire carré. Vous devez sortir l'une des deux valeurs distinctes, une si l'entrée est un nombre de triangle carré et l'autre sinon.
Il s'agit de code-golf donc les réponses seront notées en octets avec moins d'octets mieux.
Cas de test
Voici tous les nombres de triangles carrés inférieurs à 1000
30,44,47,48,60,66,69,70,78,86,90,92,94,95,96,98,108,113,116,118,120,122,124,125,126,132,138,142,147,150,152,154,156,157,158,159,160,165,170,176,180,182,185,186,188,190,192,194,195,196,197,198,200,207,212,214,216,218,221,222,224,227,230,232,234,236,237,238,239,240,246,248,253,258,260,264,266,267,268,270,273,274,275,276,278,280,281,282,283,284,285,286,290,296,298,302,303,306,308,310,312,314,317,318,320,322,323,324,326,328,329,330,331,332,333,334,335,336,338,340,344,347,350,351,352,356,357,360,362,364,368,370,371,372,374,376,377,378,380,382,384,385,386,387,388,389,390,392,394,396,402,405,408,410,413,414,415,418,420,422,423,424,426,429,430,432,434,435,436,438,440,442,443,444,445,446,447,448,449,452,456,458,462,464,466,467,468,470,472,476,477,479,480,482,484,485,488,490,491,492,494,496,497,498,500,501,502,503,504,505,506,507,508,509,510,512,515,516,518,522,523,524,527,528,530,533,536,538,540,542,543,546,548,549,550,551,552,554,557,558,560,562,563,564,566,568,569,570,571,572,573,574,575,576,578,579,582,585,588,590,592,593,594,598,600,602,603,604,605,606,608,610,612,613,614,615,616,618,620,621,623,624,626,627,628,630,632,633,634,636,638,639,640,641,642,643,644,645,646,650,652,656,657,658,659,660,662,666,667,668,670,672,674,677,678,680,682,683,686,687,689,690,692,694,695,696,698,700,701,702,704,706,707,708,709,710,711,712,713,714,715,716,717,718,719,720,722,723,726,728,730,734,737,739,740,742,744,745,746,750,752,755,756,758,760,762,764,765,767,768,770,772,773,774,776,778,779,780,782,783,784,785,786,788,789,790,791,792,793,794,795,796,797,798,800,802,803,804,805,810,812,814,816,817,818,819,820,822,825,826,827,828,829,830,832,833,834,836,837,838,840,842,846,847,848,849,850,851,852,854,855,856,858,860,861,862,863,864,866,867,868,869,870,871,872,873,874,875,876,877,878,879,880,882,884,888,890,891,893,896,897,898,902,903,904,905,908,912,913,914,915,916,918,920,923,924,926,927,928,929,931,932,933,935,936,938,940,941,942,944,946,947,948,950,952,953,954,955,956,957,958,959,960,961,962,963,964,965,966,967,968,970,972,974,976,978,980,981,984,986,987,988,992,993,995,996,998
y < x
et z < x
ou cela y+z < x
?