Compilare: main.cpp: In function 'void solve()': main.cpp:9:22: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&n); ^ main.cpp:20:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&nk,&h); ^ main.cpp: In function 'int main()': main.cpp:44:26: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&nrt); ^ main.cpp: In function 'void solve()': main.cpp:14:7: warning: 'cur' may be used uninitialized in this function [-Wmaybe-uninitialized] int cur,fost; ^~~