Compilare: main.cpp: In function 'int main()': main.cpp:76:27: warning: format '%d' expects argument of type 'int', but argument 3 has type 'long long int' [-Wformat=] fprintf(fout, "%d", nr); ^ main.cpp:58:22: warning: unused variable 'k1' [-Wunused-variable] int t, i, j, vmax, k1; ^~ main.cpp:59:44: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d%d", &t, &n, &st, &dr); ^ main.cpp:62:36: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &mat[i][j]); ^