Compilare: main.cpp: In function 'int main()': main.cpp:100:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < dist.size(); i++) { ~~^~~~~~~~~~~~~ main.cpp:91:15: warning: unused variable 'start' [-Wunused-variable] int n, m, start; ^~~~~ main.cpp:104:9: warning: unused variable 'k' [-Wunused-variable] int k = 10; ^ main.cpp:92:31: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d %d", &n, &m); ^ main.cpp:96:42: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d %d %d", &a, &b, &c); ^