1到15用5个数相加等于43不得重复答:1,4,11,12,15 1,4,11,13,14 1,4,9,14,15 1,5,10,12,15 1,5,10,13,14 1,5,11,12,14 1,5,8,14,15 1,5,9,13,15 1,6,10,11,15 1,6,10,12,14 1,6,11,12,13 1,6,7,14,15 1,6,8,13,15 1,6,9,12,15 1,6,9,13,14 1,7,10,11,14 1,7,10,12,...
1-25的自然数任意分组,要求每一组最大的数等于其他数之和答:1,7,81,8,91,9,101,10,111,11,121,12,131,13,141,14,151,15,161,16,171,17,181,18,191,19,201,20,211,21,221,22,231,23,241,24,252,3,52,4,62,5,72,6,82,7,92,8,102,9,112,10,122,11,132,12,142,13,152,14,162,15,172,16,182,17,192,18,202,...