Compilare: user.cpp: In function ‘void solve()’: user.cpp:101:11: warning: unused variable ‘fiu’ [-Wunused-variable] int fiu = *it; ^ user.cpp:113:11: warning: unused variable ‘fiu’ [-Wunused-variable] int fiu = *it; ^ user.cpp: In function ‘void read()’: user.cpp:25:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &n); ^ user.cpp:26:55: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for (int i = 1; i <= n; i++)fscanf(f, "%d", &dur[i]); ^ user.cpp:29:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &mk); ^ user.cpp:32:53: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &k), a[k][i] = dur[k] + dur[i]; ^ user.cpp: In function ‘void solve()’: user.cpp:107:21: warning: array subscript is below array bounds [-Warray-bounds] l[n + 1] = e[n + 1]; ^ user.cpp:107:10: warning: array subscript is below array bounds [-Warray-bounds] l[n + 1] = e[n + 1]; ^