0_0_20258194_12012.c:6:1: error: unknown type name 'bool'
bool sushu(int n){
^
0_0_20258194_12012.c: In function 'sushu':
0_0_20258194_12012.c:7:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i=2;i*i<=n;i++)
^
0_0_20258194_12012.c:7:5: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_20258194_12012.c:9:12: error: 'false' undeclared (first use in this function)
return false;
^
0_0_20258194_12012.c:9:12: note: each undeclared identifier is reported only once for each function it appears in
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