Compilare: main.cpp: In function 'int main()': main.cpp:127:82: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 127 | if (dp[(mask^(1<<i))][j] + strlen(a[i] + 1) - cost[j][i] < dp[mask][i]) { | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~ main.cpp:145:13: warning: 'last' may be used uninitialized [-Wmaybe-uninitialized] 145 | reconst2(mask, last); | ~~~~~~~~^~~~~~~~~~~~ main.cpp:138:9: note: 'last' was declared here 138 | int last; | ^~~~