廢話不多說,直接上**,這裡只做了整型相乘的,沒有做小數。
vector<
int>
bigint_multiply
(int a,
int b)
, bb[10]
=;int ai, bi, i, j;
//將a,b存入陣列中
for(ai =
0;a !=
0;ai++
)for
(bi =
0;b !=
0;bi++
)//做乘法,得出n*m行結果
vector int>
>
c(bi, vector<
int>
(ai));
for(i =
0;i < bi;i++)}
//將每一行結果相加
vector <
int>
result
(ai + bi,0)
;for
(i =
0;i < bi;i++)}
//進製
for(i =
0;i <
(ai + bi -1)
;i++
)//反序
vector <
int>
presult
(result)
;for
(i =
0;i <
(ai + bi)
;i++
) result[i]
= presult[ai + bi - i -2]
;}}return result;
}
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