Compilare: main.cpp: In function 'int main()': main.cpp:48:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0;j<v[i].size();j++){ ~^~~~~~~~~~~~ main.cpp:59:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (poz < L[i-1].size() && poz2 < L[i].size()){ ~~~~^~~~~~~~~~~~~~~ main.cpp:59:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (poz < L[i-1].size() && poz2 < L[i].size()){ ~~~~~^~~~~~~~~~~~~ main.cpp:60:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (poz2 < L[i].size() && L[i][poz2].y < L[i-1][poz].x) ~~~~~^~~~~~~~~~~~~ main.cpp:63:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (poz < L[i-1].size() && L[i-1][poz].y < L[i][poz2].x) ~~~~^~~~~~~~~~~~~~~ main.cpp:66:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (poz >= L[i-1].size() || poz2 >= L[i].size()) ~~~~^~~~~~~~~~~~~~~~ main.cpp:66:50: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (poz >= L[i-1].size() || poz2 >= L[i].size()) ~~~~~^~~~~~~~~~~~~~