Compilare: main.cpp: In function 'void algo1(int)': main.cpp:21:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | for (i = 0; i < poz[a].size(); i++) { | ~~^~~~~~~~~~~~~~~ main.cpp:22:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 22 | for (j = i; j < poz[a].size(); j++) { | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void algo2(int)': main.cpp:61:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 61 | if (j < poz[x].size() && i == poz[x][j]) { | ~~^~~~~~~~~~~~~~~