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为啥我从N找P的匹配就WA,从P找N的匹配就AC???如下:
for (int i=1;i<=p;i++){
memset(used, false, sizeof(used));//每次对循环中的used进行初始化
if(search(i))
count++;
}//AC
但是:
for (int i=1;i<=n;i++){
memset(used, false, sizeof(used));//每次对循环中的used进行初始化
if(search(i))
count++;
}//WA
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