0_0_17794234_31030.c:20:1: error: unknown type name 'bool'
bool sudoku(int n);
^
0_0_17794234_31030.c: In function 'main':
0_0_17794234_31030.c:60:3: error: expected expression before '/' token
//printf("count = %d\n", count);
^
0_0_17794234_31030.c: At top level:
0_0_17794234_31030.c:96:1: error: unknown type name 'bool'
bool sudoku(int n)
^
0_0_17794234_31030.c: In function 'sudoku':
0_0_17794234_31030.c:100:10: error: 'true' undeclared (first use in this function)
return true;
^
0_0_17794234_31030.c:100:10: note: each undeclared identifier is reported only once for each function it appears in
0_0_17794234_31030.c:104:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int k = 1; k < 10; k++)
^
0_0_17794234_31030.c:104:2: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_17794234_31030.c:116:9: error: 'false' undeclared (first use in this function)
return false;
^
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