Compilare: main.cpp: In function 'int main()': main.cpp:131:37: warning: format '%c' expects argument of type 'char*', but argument 3 has type 'int*' [-Wformat=] fscanf (fin, "%c", &mat[i][j] ) ; ^ main.cpp:128:35: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d%d\n", &n, &m ) ; ^ main.cpp:131:39: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%c", &mat[i][j] ) ; ^ main.cpp:134:25: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "\n" ) ; ^