Compilare: main.cpp: In function 'int main()': main.cpp:45:37: warning: format '%c' expects argument of type 'char*', but argument 3 has type 'int*' [-Wformat=] fscanf( fin, "%c", &mat[i][j] ); ^ main.cpp:42:33: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d ", &n, &m ); ^ main.cpp:45:38: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%c", &mat[i][j] ); ^