大家好: 我手边有一个档案 input.txt 如下 the 77 survey: 77 out of 100 people will not pick the number 1 as the first choice. A stitch in time saves 9 but only if you have exactly 9. 52 trombones were in 5 marching bands in the big parade of 52 and 52 people attended. 要取出每行的数字,去除重复的数字,并相加 77+100+1+9+52+5= 274 我已经把每行的数字取到阵列中,可是我不知道删掉重复的数字 有想过用hash,可我怎麽写都写不出来,请大家给我一点提示 谢谢 --

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