View Compilation Error

0_0_24703826_31447.cpp:12:5: error: stray '\' in program
     printf("+");for(i=1;i<=m;i++)printf("-");printf("+"\n);
     ^
0_0_24703826_31447.cpp: In function 'int main()':
0_0_24703826_31447.cpp:12:57: error: expected ')' before 'n'
     printf("+");for(i=1;i<=m;i++)printf("-");printf("+"\n);
                                                         ^