Borderou de evaluare (job #755284)

Compilare: main.cpp: In function 'int main()': main.cpp:21:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'unsigned int'} [-Wsign-compare] 21 | if(i + pas < tunnels[col].size() && tunnels[col][i + pas] <= lin) | ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:43:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'unsigned int'} [-Wsign-compare] 43 | if(i + pas < tunnels[col].size() && tunnels[col][i + pas] <= lin) | ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:66:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'unsigned int'} [-Wsign-compare] 66 | if(i + pas < tunnels[col].size() && tunnels[col][i + pas] <= lin) | ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:6:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 6 | freopen("tunel.in", "r", stdin); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:7:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 7 | freopen("tunel.out", "w", stdout); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:8:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 8 | scanf("%d%d%d%d", &c, &n, &m, &l); | ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:10:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 10 | scanf("%d", &p); | ~~~~~^~~~~~~~~~ main.cpp:12:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result] 12 | scanf("%d", &x); | ~~~~~^~~~~~~~~~