Compilare: user.cpp: In function ‘int allInOne(int, int, int, unsigned int*)’: user.cpp:17:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(j+pas <= n && vec[j+pas] <= c) j+= pas; ^ user.cpp:20:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(vec[j] == c) return j; ^ user.cpp:26:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(j+pas <= n && vec[j+pas] <= c) j+= pas; ^ user.cpp:34:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(j+pas <= n && vec[j+pas] < c) j+= pas; ^ user.cpp:39:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:44:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d" , &n); ^ user.cpp:45:48: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(i=1;i<=n;i++) fscanf(in, "%u" , &el[i]); ^ user.cpp:46:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d" , &m); ^ user.cpp:49:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in , "%d %d" , &x, &c); ^