circus.cpp: In function 'void init(int, int, int*)':
circus.cpp:46:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
46 | if(x >= par && x+1 < p.size()) pQ.em(p[x+1] - p[par], mp(x+1, par));
| ~~~~^~~~~~~~~~
circus.cpp:54:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
54 | if(k < p.size()) pQ.em(p[k] - p[x], mp(k, x));
| ~~^~~~~~~~~~
circus.cpp: In function 'int minLength(int)':
circus.cpp:64:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
64 | for(int i=0; i<p.size(); i++) {
| ~^~~~~~~~~
grader.cpp: In function 'int main()':
grader.cpp:14:12: warning: unused variable 'max_code' [-Wunused-variable]
14 | long long max_code;
| ^~~~~~~~
grader.cpp:16:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
16 | scanf("%d%d", &N, &M);
| ~~~~~^~~~~~~~~~~~~~~~
grader.cpp:18:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
18 | scanf("%d", &P[i]);
| ~~~~~^~~~~~~~~~~~~
grader.cpp:21:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
21 | scanf("%d", &Q);
| ~~~~~^~~~~~~~~~
grader.cpp:23:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
23 | scanf("%d", &d);
| ~~~~~^~~~~~~~~~