Compilare: main.cpp: In function 'int solve(int, int, int)': main.cpp:83:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<event>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 83 | while(j < events.size() && events[j].x <= i) | ~~^~~~~~~~~~~~~~~ main.cpp:96:15: warning: iteration 200018 invokes undefined behavior [-Waggressive-loop-optimizations] 96 | dp[i] = tree[1].val; | ~~~~~~^~~~~~~~~~~~~ main.cpp:81:22: note: within this loop 81 | for(int i=0,j=0;i<=2*N;++i) | ~^~~~~ main.cpp:102:25: warning: array subscript 200018 is above array bounds of 'int [200018]' [-Warray-bounds] 102 | suf_dp[2*N] = dp[2*N]; | ~~~~~~^ main.cpp:20:5: note: while referencing 'dp' 20 | int dp[2*N]; | ^~ main.cpp:102:15: warning: array subscript 200018 is above array bounds of 'int [200018]' [-Warray-bounds] 102 | suf_dp[2*N] = dp[2*N]; | ~~~~~~~~~~^ main.cpp:22:5: note: while referencing 'suf_dp' 22 | int suf_dp[2*N]; | ^~~~~~