Compilare: main.cpp: In function 'void algo1(int)': main.cpp:25:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | for (i = 0; i < poz[a].size(); i++) { | ~~^~~~~~~~~~~~~~~ main.cpp:26:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | for (j = i + 1; j < poz[a].size(); j++) { | ~~^~~~~~~~~~~~~~~ main.cpp:37:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 37 | if (j == poz[a].size() - 1) { | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void algo2(int)': main.cpp:64:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 64 | if (j < poz[x].size() && i == poz[x][j]) { | ~~^~~~~~~~~~~~~~~