Compilare: user.cpp: In function ‘int main()’: user.cpp:10:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%d",&n,&m,&x); ^ user.cpp:22:37: warning: iteration 88200 invokes undefined behavior [-Waggressive-loop-optimizations] count[k]=copie[k]; ~~~~~~~^ user.cpp:21:27: note: within this loop for(k=0; k<=2*MAXX; k++){ ^ user.cpp:17:46: warning: iteration 88200 invokes undefined behavior [-Waggressive-loop-optimizations] copie[k-val]=(copie[k-val]+count[k])%MOD; ~~~~~~~~~~~^ user.cpp:16:27: note: within this loop for(k=0; k<=2*MAXX; k++){ ^