法一:用boolean数组(一些测试用例会越界,没有做边界检查) publicclassSolution{privatestaticStringoperate(boolean[][] arr,String op,inta,intb){switch(op) {case"AND":for(inti=0;i<arr[0].length;i++) { arr[a-1][i] = arr[a-1][i] & arr[b-1][i]; }break;case"OR":for(inti=0;i<...
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