Compilare: main.cpp: In function 'int main()': main.cpp:29:13: warning: statement has no effect [-Wunused-value] 29 | for(it;it!=s.begin();it--) | ^~ main.cpp:42:34: warning: 'firsti' may be used uninitialized [-Wmaybe-uninitialized] 42 | sol[firsti]=r[i]+p[firsti]; | ~~~~~~~~^ main.cpp:28:33: note: 'firsti' was declared here 28 | int firstperson=INT_MAX,firsti; | ^~~~~~