Compilare: user.cpp: In function ‘int hashh(int)’: user.cpp:19:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:23:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("oite.in","r",stdin); ^ user.cpp:24:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("oite.out","w",stdout); ^ user.cpp:26:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&c,&l); ^ user.cpp:28:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v[i]); ^ user.cpp: In function ‘int hashh(int)’: user.cpp:14:35: warning: array subscript is above array bounds [-Warray-bounds] if(dsp[x][0]==a) {dsp[x][1]++;break;} ^ user.cpp:14:35: warning: array subscript is above array bounds [-Warray-bounds] user.cpp:15:47: warning: array subscript is above array bounds [-Warray-bounds] if(dsp[x][0]==0) {dsp[x][0]=a;dsp[x][1]=1;break;} ^ user.cpp: In function ‘int main()’: user.cpp:38:84: warning: array subscript is above array bounds [-Warray-bounds] if(dsp[a][0]==t) {sol+=dsp[a][1];break;} ^