matrice1.cpp: In function 'int main()': matrice1.cpp:20: warning: format '%d' expects type 'int*', but argument 2 has type 'short int*' matrice1.cpp:13: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result matrice1.cpp:14: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result matrice1.cpp:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result matrice1.cpp:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result matrice1.cpp:31: warning: 'x11' may be used uninitialized in this function matrice1.cpp:31: warning: 'y11' may be used uninitialized in this function matrice1.cpp:31: warning: 'x22' may be used uninitialized in this function matrice1.cpp:31: warning: 'y22' may be used uninitialized in this function