View Compilation Error

0_0_10963082_22961.c: In function `main':
0_0_10963082_22961.c:6: error: `bool' undeclared (first use in this function)
0_0_10963082_22961.c:6: error: (Each undeclared identifier is reported only once
0_0_10963082_22961.c:6: error: for each function it appears in.)
0_0_10963082_22961.c:6: error: syntax error before "dp"
0_0_10963082_22961.c:27: error: `dp' undeclared (first use in this function)
0_0_10963082_22961.c:27: error: `false' undeclared (first use in this function)
0_0_10963082_22961.c:32: error: `true' undeclared (first use in this function)