Compilare: user.cpp: In function ‘int main()’: user.cpp:12:33: warning: unused variable ‘k’ [-Wunused-variable] int m, n, a[MAXL][MAXL], i, j, k, sol[MAXL][MAXL][2], mins, mins1, mins2; ^ user.cpp:12:56: warning: unused variable ‘mins’ [-Wunused-variable] int m, n, a[MAXL][MAXL], i, j, k, sol[MAXL][MAXL][2], mins, mins1, mins2; ^ user.cpp:13:7: warning: unused variable ‘s’ [-Wunused-variable] char s[LEN], c; ^ user.cpp:13:15: warning: unused variable ‘c’ [-Wunused-variable] char s[LEN], c; ^ user.cpp:14:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1, "%d%d\n", &m, &n); ^ user.cpp:17:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1, "%d", &a[i][j]); ^