Compilare: user.cpp: In function ‘int minCost(int, int, int, int)’: user.cpp:86:20: warning: narrowing conversion of ‘sx’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] q.push({sx, sy, 0}); ^ user.cpp:86:20: warning: narrowing conversion of ‘sy’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] user.cpp:109:34: warning: narrowing conversion of ‘nx’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] q.push({nx, ny, cst[ny][nx]}); ^ user.cpp:109:34: warning: narrowing conversion of ‘ny’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] user.cpp:89:7: warning: unused variable ‘minIdx’ [-Wunused-variable] int minIdx = 0; ^ user.cpp: In function ‘int main()’: user.cpp:118:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("car.in", "r", stdin); ^ user.cpp:119:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("car.out", "w", stdout); ^