Compilare: main.cpp: In function 'int main()': main.cpp:22:37: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=] fscanf(fin,"%d",&a[i][j]); ^ main.cpp:27:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=1; i<=m; ++i) ^~~ main.cpp:64:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' fprintf(fout,"%d\n",ans); ^~~~~~~ main.cpp:19:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&m,&n); ^ main.cpp:22:38: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&a[i][j]); ^