Compilare: main.cpp: In function 'int main()': main.cpp:41:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | for(l=0;l<v[j].size();l++) | ~^~~~~~~~~~~~ main.cpp:39:18: warning: iteration 50005 invokes undefined behavior [-Waggressive-loop-optimizations] 39 | sp[j]=0; | ~~~~~^~ main.cpp:38:18: note: within this loop 38 | for(j=0;j<=NMAX3;j++) | ~^~~~~~~ main.cpp:39:18: warning: 'void* __builtin_memset(void*, int, long unsigned int)' forming offset [200020, 200023] is out of the bounds [0, 200020] of object 'sp' with type 'int [50005]' [-Warray-bounds] 39 | sp[j]=0; | ~~~~~^~ main.cpp:13:5: note: 'sp' declared here 13 | int sp[NMAX3],dp[NMAX]; | ^~