Compilare: main.cpp: In function 'void {anonymous}::solve()': main.cpp:90:44: warning: format '%d' expects argument of type 'int', but argument 4 has type 'long long int' [-Wformat=] fprintf(fo, "%d %d\n", lin, col); ^ main.cpp: In function 'int main()': main.cpp:103:25: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fi, "%d", &q); ^ main.cpp: In function 'void {anonymous}::solve()': main.cpp:58:35: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fi, " %s", (s + 1)); ^