Compilare: user.cpp: In function ‘int main()’: user.cpp:77:15: warning: unused variable ‘mk1’ [-Wunused-variable] int i, j, mk1, mk2, sol = 2000000000, dk1k2 = 0, dk2k1 = 0, d1k1 = 0, d1k2 = 0, dk1n = 0, dk2n = 0; ^ user.cpp:77:20: warning: unused variable ‘mk2’ [-Wunused-variable] int i, j, mk1, mk2, sol = 2000000000, dk1k2 = 0, dk2k1 = 0, d1k1 = 0, d1k2 = 0, dk1n = 0, dk2n = 0; ^ user.cpp:78:74: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d %d %d %d %d %d", &N, &K1, &K2, &L1, &C1, &L2, &C2); ^ user.cpp:81:41: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &ma[i][j]); ^