Compilare: main.cpp: In function 'int main()': main.cpp:45:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (sol + j < n) ~~~~~~~~^~~ main.cpp:51:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (sol > j) ~~~~^~~ main.cpp:13:26: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%u", &n); ^ main.cpp:19:33: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%u", &v[i]); ^ main.cpp:30:26: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &m); ^ main.cpp:35:40: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%u %u", &task, &x); ^