Compilare: user.c:13:11: warning: conflicting types for built-in function ‘pow’ long long pow( long long base, int exp ) { ^~~ user.c: In function ‘main’: user.c:109:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] for ( fscanf( fin, "%d", &t ); t > 0; t -- ) { ^~~~~~~~~~~~~~~~~~~~~~~ user.c:115:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &n ); ^~~~~~~~~~~~~~~~~~~~~~~ user.c:118:13: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &nr ); ^~~~~~~~~~~~~~~~~~~~~~~~ user.c:123:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &m ); ^~~~~~~~~~~~~~~~~~~~~~~ user.c:126:13: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &nr ); ^~~~~~~~~~~~~~~~~~~~~~~~