View Compilation Error

0_0_29759415_27559.cpp: In function 'bool prim()':
0_0_29759415_27559.cpp:29:13: error: return-statement with no value, in function returning 'bool' [-fpermissive]
             return;
             ^
0_0_29759415_27559.cpp:39:5: error: return-statement with no value, in function returning 'bool' [-fpermissive]
     return;
     ^