【对于整数取绝对值是abs呀,怎么错了呢提示错误:`abs'undeclared(firstusethisfunction)#include#includeintmain(){freopen("data.in","r",stdin);freopen("data.out","w",stdout);intn,m;while(scanf("%d%d",&m,&n)!=EOF){longa[m][n];inti】
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问题描述：
对于整数取绝对值是abs呀,怎么错了呢
提示错误:`abs'undeclared(firstusethisfunction)
#include
#include
intmain()
{
freopen("data.in","r",stdin);
freopen("data.out","w",stdout);
intn,m;
while(scanf("%d%d",&m,&n)!=EOF)
{
longa[m][n];
inti,j;
ints=0,t=0;
longmax;
for(i=0;i
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