View Compilation Error

0_0_25950341_6880.cpp:6:5: error: stray '\243' in program
     num=1；
     ^
0_0_25950341_6880.cpp:6:5: error: stray '\273' in program
0_0_25950341_6880.cpp:17:13: error: missing terminating " character
             printf("\n”);
             ^
0_0_25950341_6880.cpp:18:1: error: stray '\243' in program
 ／／判断直角三角形
 ^
0_0_25950341_6880.cpp:18:1: error: stray '\257' in program
0_0_25950341_6880.cpp:18:1: error: stray '\243' in program
0_0_25950341_6880.cpp:18:1: error: stray '\257' in program
0_0_25950341_6880.cpp:18:1: error: stray '\305' in program
0_0_25950341_6880.cpp:18:1: error: stray '\320' in program
0_0_25950341_6880.cpp:18:1: error: stray '\266' in program
0_0_25950341_6880.cpp:18:1: error: stray '\317' in program
0_0_25950341_6880.cpp:18:1: error: stray '\326' in program
0_0_25950341_6880.cpp:18:1: error: stray '\261' in program
0_0_25950341_6880.cpp:18:1: error: stray '\275' in program
0_0_25950341_6880.cpp:18:1: error: stray '\307' in program
0_0_25950341_6880.cpp:18:1: error: stray '\310' in program
0_0_25950341_6880.cpp:18:1: error: stray '\375' in program
0_0_25950341_6880.cpp:18:1: error: stray '\275' in program
0_0_25950341_6880.cpp:18:1: error: stray '\307' in program
0_0_25950341_6880.cpp:18:1: error: stray '\320' in program
0_0_25950341_6880.cpp:18:1: error: stray '\316' in program
0_0_25950341_6880.cpp: In function 'int main()':
0_0_25950341_6880.cpp:7:5: error: expected ';' before 'scanf'
     scanf("%d",&n);
     ^
0_0_25950341_6880.cpp:19:9: error: expected primary-expression before '}' token
         }
         ^