Compilare: main.c: In function 'main': main.c:24:3: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d", &t ); ^~~~~~~~~~~~~~~~~~~~~~~ main.c:26:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d", &x, &y ); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:19:13: warning: iteration 10006 invokes undefined behavior [-Waggressive-loop-optimizations] if( ciur[i] == 0 ) ~~~~^~~ main.c:18:3: note: within this loop for( i = 2; i <= N; i++ ) ^~~