0_0_20520418_31350.cpp:1:9: error: #include expects "FILENAME" or <FILENAME>
#include <iostream>
^
0_0_20520418_31350.cpp:2:6: error: expected nested-name-specifier before '&' token
using namespace std;
^
0_0_20520418_31350.cpp:2:21: error: expected identifier before '&' token
using namespace std;
^
0_0_20520418_31350.cpp:2:26: error: expected constructor, destructor, or type conversion before ';' token
using namespace std;
^
0_0_20520418_31350.cpp:2:27: error: 'std' does not name a type
using namespace std;
^
0_0_20520418_31350.cpp:2:36: error: expected constructor, destructor, or type conversion before ';' token
using namespace std;
^
0_0_20520418_31350.cpp:2:42: error: expected constructor, destructor, or type conversion before ';' token
using namespace std;
^
0_0_20520418_31350.cpp:3:5: error: 'nbsp' declared as reference but not initialized
int prime[40]={0,1,1,1,0,1,0,1,0,0,0,1,0,1,0,0,0,1,0,1,0,0,0,1,0,0,0,0,0,1,0,1,0,0,0,0,0,1,0,0};//因为数字规模比较小，因此手动打素数表
^
0_0_20520418_31350.cpp:3:10: error: 'prime' does not name a type
int prime[40]={0,1,1,1,0,1,0,1,0,0,0,1,0,1,0,0,0,1,0,1,0,0,0,1,0,0,0,0,0,1,0,1,0,0,0,0,0,1,0,0};//因为数字规模比较小，因此手动打素数表
^
0_0_20520418_31350.cpp:4:5: error: redefinition of 'int& nbsp'
int n;
^
0_0_20520418_31350.cpp:3:5: note: 'int& nbsp' previously declared here
int prime[40]={0,1,1,1,0,1,0,1,0,0,0,1,0,1,0,0,0,1,0,1,0,0,0,1,0,0,0,0,0,1,0,1,0,0,0,0,0,1,0,0};//因为数字规模比较小，因此手动打素数表
^
0_0_20520418_31350.cpp:4:10: error: 'n' does not name a type
int n;
^
0_0_20520418_31350.cpp:4:17: error: expected constructor, destructor, or type conversion before ';' token
int n;
^
0_0_20520418_31350.cpp:4:23: error: expected constructor, destructor, or type conversion before ';' token
int n;
^
0_0_20520418_31350.cpp:5:6: error: conflicting declaration 'bool& nbsp'
bool visit[25];
^
0_0_20520418_31350.cpp:3:5: note: previous declaration as 'int& nbsp'
int prime[40]={0,1,1,1,0,1,0,1,0,0,0,1,0,1,0,0,0,1,0,1,0,0,0,1,0,0,0,0,0,1,0,1,0,0,0,0,0,1,0,0};//因为数字规模比较小，因此手动打素数表
^
0_0_20520418_31350.cpp:5:11: error: 'visit' does not name a type
bool visit[25];
^
0_0_20520418_31350.cpp:5:26: error: expected constructor, destructor, or type conversion before ';' token
bool visit[25];
^
0_0_20520418_31350.cpp:5:32: error: expected constructor, destructor, or type conversion before ';' token
bool visit[25];
^
0_0_20520418_31350.cpp:6:5: error: redefinition of 'int& nbsp'
int a[25];
^
0_0_20520418_31350.cpp:3:5: note: 'int& nbsp' previously declared here
int prime[40]={0,1,1,1,0,1,0,1,0,0,0,1,0,1,0,0,0,1,0,1,0,0,0,1,0,0,0,0,0,1,0,1,0,0,0,0,0,1,0,0};//因为数字规模比较小，因此手动打素数表
^
0_0_20520418_31350.cpp:6:10: error: 'a' does not name a type
int a[25];
^
0_0_20520418_31350.cpp:6:21: error: expected constructor, destructor, or type conversion before ';' token
int a[25];
^
0_0_20520418_31350.cpp:6:27: error: expected constructor, destructor, or type conversion before ';' token
int a[25];
^
0_0_20520418_31350.cpp:7:6: error: cannot declare reference to 'void'
void dfs(int num)
^
0_0_20520418_31350.cpp:7:6: error: variable or field 'nbsp' declared void
0_0_20520418_31350.cpp:7:23: error: expected ')' before ';' token
void dfs(int num)
^
0_0_20520418_31350.cpp:7:23: error: expected constructor, destructor, or type conversion before ';' token
0_0_20520418_31350.cpp:7:24: error: 'num' does not name a type
void dfs(int num)
^
0_0_20520418_31350.cpp:7:39: error: expected constructor, destructor, or type conversion before ';' token
void dfs(int num)
^
0_0_20520418_31350.cpp:8:1: error: expected unqualified-id before '{' token
{
^
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